DEWALT DWS779 12-Inch Sliding Compound Miter Saw: In-Depth Review and Buying Guide

The DEWALT DWS779 is a professional-grade 12-inch sliding compound miter saw built for high-precision cutting tasks on the jobsite or in the workshop.  Its powerful 15 Amp motor and 3,800 RPM blade speed provide the muscle needed to cut through framing lumber, trim boards, and molding with ease .  Featuring dual-bevel capability (up to 50° left and 60° right) and tall sliding fences that support up to 7½″ nested crown molding, the DWS779 handles a wide range of crosscuts, miters, and bevels .  This makes it suitable for DIY enthusiasts installing baseboards or crown, carpenters framing decks or houses, and woodworkers crafting fine trim.  Although heavy (about 56 lb ), its dual horizontal rails with linear ball bearings ensure smooth motion and cutting accuracy .  Overall, the DWS779 blends a rugged build with versatile functionality, earning praise from users as a “best bang for the buck” miter saw .

Key specifications at a glance include: 15 Amp, 3800 RPM motor; 12″ carbide blade (32T included); dual-bevel (0–50° L, 0–60° R); sliding rails for extended reach; tall fences (7½″ crown, 6¾″ base); electric brake; and a 3-year limited warranty .  We’ll explore these features in detail, examine real-world usage scenarios (from home renovation to professional framing), and provide a practical buying guide. Throughout, we draw on manufacturer info and independent reviews to present a comprehensive, SEO-friendly analysis of the DWS779.

Key Features and Specifications

 

• Motor & Power: 15 Amp, 3,800 RPM (115 V) motor for smooth cutting through hardwoods and dimensional lumber.

• Blade: 12-inch carbide blade (32-tooth blade included); arbor accepts 5/8″ or 1″ blade .

• Cutting Capacity: Crosscuts up to 2×14″ at 90° and 2×10″ at 45° . Crown molding capacity 7½″ nested (crown miter) and base molding 6¾″ vertical . Maximum vertical height (e.g., cutting crown flat) is around 3-3/8″ thick.

• Bevel & Miter Range: Dual-bevel cuts from 0° to 48° left and right (via a manual lever to go past 45°) . Miter range is 0°–60° right and 0°–50° left with detent stops at common angles .

• Fence System: Tall cast fence with movable upper fence for tall material. Supports up to 7½″ crown (nested) and 6¾″ base vertically .

• Sliding Rails: Dual horizontal steel rails with ball-bearing slides and clamp for accuracy and rigidity . Allows extra crosscut capacity on wider boards.

• Safety & Brakes: Built-in electric brake stops the blade within ~0.5 seconds when trigger is released .  A large blade guard covers the blade when raised and lowers during cutting. Includes a lock-down pin to secure the head for transport .

• Dust Collection: Rear dust port + bag; engineered to capture >75% of sawdust .  Works with a shop vacuum for cleaner cuts.

• Portability: “Compact and lightweight” for its class (56 lb total weight) with integrated handle. Stability is very good due to metal base.

• Warranty: 3-year limited warranty with 1-year free service .

 

These specifications show that the DWS779 is designed as a heavy-duty slider miter saw: large blade and fence, powerful motor, and wide angle ranges make it a workhorse for framing, trim work, and repetitive angled cuts.  In the following sections we’ll look at each aspect in more depth, supported by data from the tool’s manual, retailer specs, and real-world reviews.

Design and Build Quality

 

The DEWALT DWS779 features a solid, all-metal construction with a cast aluminum base and fence.  This rugged build ensures long-term durability on the jobsite.  The base is wide and heavy, helping the saw stay firmly planted during use.  The dual telescoping steel rails are also robust, providing precise sliding action under load.  In practice, reviewers note that the saw “feels rock solid” when operated.  DEWALT uses a dual steel-rail design with an innovative clamping mechanism, so the sliding motion remains smooth and true over thousands of cuts .  The miter detent plate is made of stainless steel and includes 10 positive stops (0°, 15°, 22.5°, 31.6°, 45°, etc.) for repeatable angle cuts .  These stops help users quickly index common angles without guesswork.

The fences are notably tall: a lower fixed fence plus a sliding upper fence that can move out of the way for bevel cuts.  With this design, the saw supports very tall workpieces.  In fact, DEWALT specifies 7½″ crown molding nested (crown on edge) and 6¾″ baseboard vertically up to the fence .  HomeFixated’s review highlights these capacities, calling out the tall fences as a key benefit for finish carpenters . The fences lock securely in place after adjustment, ensuring the board stays square to the blade.

Overall, the build quality is perceived as excellent for a 12″ saw.  The die-cast base and fence system are heavy and durable, while the fine-machined miter scale and bevel scale enhance precision.  One reviewer found that the factory accuracy was very good: after unpacking, their fence and blade were “dead on” square without any calibration needed .  DEWALT also includes thoughtful touches like a depth stop for partial cuts (half-laps, dadoes) and a footlock mechanism to secure the head for transport .  In summary, the DWS779’s design emphasizes stability and accuracy, which contractors and woodworkers rely on to make precise, repeatable cuts.

Motor Power and Cutting Performance

 

At its heart, the DWS779 sports a 15-amp motor spinning a 12″ blade at 3800 RPM .  This high torque motor gives it excellent power reserve to cut through hardwoods, pressure-treated lumber, and sheet goods smoothly.  Users report that under load (e.g. ripping a 2×10 at 45°) the saw maintains speed and does not bog down easily.  The high no-load speed of 3800 RPM is above average for compound miter saws, contributing to clean cut quality.

This motor allows the DWS779 to “eat through dimensional lumber” with authority .  For example, the saw can cleanly cross-cut a 2×14″ beam at 90° , which covers most framing lumber.  Finish carpenters also benefit: the high power means dense woods (like oak trim) can be cut without slowing or burning the blade.  The 15A motor is also consistent with what many pro-grade miter saws use.

The cutting performance is further enhanced by the saw’s smooth sliding action.  When cutting wider stock than the base (13¾″ is the typical straight cut width), the user simply pulls the blade forward on its rails, lowers, and pushes through the cut.  This sliding feature effectively extends the blade reach.  Reviewers note that the rails “run really smooth” and feel well supported even when extended .  The linear ball bearing slides prevent binding when the head is tilted or mitered off center.

To illustrate real-world performance: Accuracy.  A hands-on review author cut plywood at full width (13¾″) and checked squareness. The right-side cut was perfectly square, and the left-side cut was only a few thousandths off .  Small adjustments (the saw comes with a blade wrench that even serves as a screwdriver) can dial in any offset.  In general, the DWS779 delivers very straight, accurate cuts when set up properly.  DEWALT’s precise-machined miter system and stable construction help ensure this accuracy .

Vibration and Stability: The heavy steel frame and cast base help dampen vibration. In practice, the DWS779 feels stable even when cutting 12″ planks – there’s very little wobble.  DEWALT’s gear and belt-drive design also contributes to consistent cutting. For repeated cuts, the built-in electric brake (discussed below) also means the blade stops almost instantly between cuts, improving safety and workflow speed.

Blade Quality: The saw ships with a 32-tooth carbide-tipped blade (standard crosscut blade). This blade is adequate for rough framing cuts, but many users note it’s not a fine finish blade.  Indeed, HomeFixated mentions that “finish carpenters will want to swap it out … for an 80-tooth” blade for furniture or trim .  (Upgrading to a fine-tooth blade is common when cutting hardwoods or molding.)  The DWS779’s blade arbor can accept either 5/8″ or 1″ arbor blades, giving flexibility in blade choices.  Changing the blade is straightforward using the provided wrench.

In summary, the DWS779’s motor and performance place it well in the professional category.  The 15A motor with 3800 RPM, combined with its slide rails, means it cuts large stock effortlessly.  Both woodworkers and contractors will appreciate its ability to handle tough materials without bogging down.  For high-volume cutting jobs (e.g. trim installation or framing), this saw offers the consistency and power needed for clean, reliable results.

Cutting Capacity and Applications

 

One of the standout advantages of the DWS779 is its massive cutting capacity.  Thanks to the sliding rails, the saw can crosscut boards up to about 13¾ inches wide at 90°, according to tested measurements .  (With a special deep-cut setup, some users even achieve roughly 15¾″, but this requires unlocking the pin and sliding the saw all the way forward .)  In practice, this means you can cut full-width decking boards, sheet stock, or floor planks without having to make two cuts.  For a DIYer building a deck or a contractor ripping 2×12 joists, this extra reach is hugely beneficial.

The saw’s vertical capacity is also impressive.  The tall fences support up to 7½″ of crown molding nested flat against the fence (mitered into a corner) , and 6¾″ of baseboard vertically .  To put it another way, if you want to cut crown molding using the nest method (flat on back), you can handle 7½″ height – that covers most common crown profiles.  Likewise, cutting baseboard on edge up to 6¾″ tall is fine for thick base moldings.  After unlocking the higher fence, the saw can accept these large profiles on taller work.  This makes the DWS779 well-suited for finish carpentry: door casings, window trim, crown and base molding, picture frames, etc.

The bevel capacity complements the cut range.  You can bevel to either side, which is essential for compound cuts on crown molding and angled joints.  DEWALT’s design allows the head to tilt smoothly through 45°, with an extra lever to go up to 48° .  (Note: The spec sheet says “0°–48° left/right,” indicating it can go slightly past 45° on each side for those unusual cuts .)  Users must pull a knob to unlock the bevel, flip it to the desired angle (the saw even has built-in stops/pawls for some bevel angles), and then lock it down.  The large bevel scale is easy to read, and the motion is smooth due to the robust pivot mechanism.

Real-world scenario – crown molding:  A homeowner installing 5″ crown molding can do compound crown cuts by flipping the molding into the DWS779’s tall nest fence and beveling. The saw’s capacity covers common setups, and detents for angles like 33.9° (for common crown) make it straightforward.  If cutting crown with the molding flat (not nested), the fences allow the molding to lie on its back up to 3.375″ thick at 45°, which is common practice.  In short, the DWS779 covers all typical crown/base cut scenarios with room to spare.

Real-world scenario – framing lumber:  Contractors framing houses may need to cut studs (2×6, 2×8, 2×10, 2×12).  The DWS779 can handle up to 2×10 at a 45° bevel, and up to 2×14 at 90° . In fact, the manual notes an innovative gearbox design that extends the blade deeper for these larger cuts.  So a builder can chop long 2×12 boards on this saw without needing to break them.  (For 2×14, it can cut at 90°; for bevel cuts, 2×10 is the spec.)  Again, this is very generous capacity that few smaller miter saws can match.

Below is a table summarizing the major cutting capacities:

• Maximum Crosscut at 90°: ~13¾″ wide boards; 2×14 dimensional lumber (deeper cut) .

• Maximum Crosscut at 45°: ~10–11″ wide; 2×10 dimensional lumber .

• Crown Molding (Flat/Nested): Up to 7½″ (nested) .

• Base Molding (Vertical): Up to 6¾″ .

• Bevel Range: 0–45° standard, extendable to 48° .

• Miter Range: 0–50° left, 0–60° right .

 

This cutting capacity means the DWS779 is a versatile “all-purpose” saw.  It handles framing, trim, cabinet stock, shelving, flooring boards, and even tile (with appropriate blade) thanks to its power and size . Many reviews mention its suitability for a variety of tasks – from shelving and floorboards to window casings and crown molding . In sum, whether you are a contractor needing to cut 12-foot deck planks or a DIYer trimming custom shelving, the DWS779’s capacity will likely cover the job.

Miter and Bevel Adjustments

 

Precise angle adjustments are crucial in a compound miter saw, and DEWALT has equipped the DWS779 with intuitive miter and bevel controls.  On the front of the saw you’ll find a large cam-lock handle for setting miter angles .  With the handle released, the table rotates smoothly; DEWALT’s machined detent plate has stainless steel stops at common angles (0°, 15°, 22.5°, 30°, 45°, etc.), so you can feel the saw “click” into each notch .  There is also a detent override button, allowing you to set any intermediate angle between the stops.  An oversized red pointer precisely lines up on the miter scale, and you can fine-tune it with the provided wrench if needed .  Once set, you press the handle down to lock the table in place.

Miter Range: The DWS779’s table rotates 60° to the right and 50° to the left . This is generous: many saws offer only 45° each way.  This extra range can be handy for fitting wider crown moldings on diagonal ceiling corners.  Users note it’s easy to change angles – just depress the knob on the handle, swing the table, and lock.  The whole process is quick and solid.

Bevel Adjustments: The bevel control is on the side. A large knob on the side loosens and allows tilting the saw head.  At 45°, the saw locks into place automatically. If you need past 45°, you pull a small bevel lock lever (on many DEWALT saws this is a lever on the fence) and continue tilting.  The saw will then stop at about 48° .  There is a similar latch to unlock and tilt the head the other way for left bevels.  The bevel scale is also large and legible. DEWALT even provides pawl stops for some common bevel angles if you engage them (these make it easier to return to 45° cuts on both sides).

Reviewers find these angle mechanisms to be smooth and easy to use.  As one user noted, moving the miter and bevel angles is straightforward, and once locked the saw stays firmly at the chosen angle.  The positive detents and scales make it easy to achieve exactly the angle you want.  The accuracy of these angle cuts is very good: thanks to the stiff fence and base, cuts at any miter/bevel angle come out as square as the saw was set.  One reviewer performed a cut and found the blade perfectly square on one side, and only 1/64″ off on the other – well within any tolerances needed for trim work .  Adjustments can easily be made if greater precision is required, using the simple screws on the miter detent plate .

In summary, the DWS779’s miter and bevel system is user-friendly and precise. The cam-lock miter handle and the bevel lock knob provide fast adjustments, and the stops/detents help with productivity.  These features contribute to reliable cutting accuracy: The build ensures that once set, the angles remain consistent with each cut . The accessible design (e.g. push-button release for detents, easy-turn handles) also means beginners can learn it quickly while pros can make hundreds of identical cuts without fatigue.

Accuracy and Calibration

 

When it comes to accuracy, the DWS779 is designed to be “dead-on” out of the box and adjustable if needed.  DEWALT’s factory setup is generally good: as one hands-on review reported, after taking the saw out of the box the fence and blade were already perfectly square .  This speaks to quality control.  Nevertheless, DEWALT includes adjustment screws and clear instructions so you can calibrate the saw yourself for fine-tuning.  The included blade wrench doubles as a tool to loosen screws on the miter scale for precise adjustments .  Reviews confirm that it only took a minor tweak to align both left and right cuts perfectly square, a process well-documented in the manual .

The miter detent system also aids accuracy by reliably holding angles. The stainless detent plate and cam-lock handle make angles repeatable. A user can dial in a perfect 90° cut, then use the laser pointer on the scale to double-check that the pointer reads exactly zero.  If not, adjustments are simple.  Over time, even if the saw is bumped, it can be “trued up” quickly.  This means that on a jobsite with vibration or moving the saw, you’re not constantly second-guessing your angles.

Cut consistency: When making multiple cuts at the same angle (say 22.5° for picture frames), the DWS779 holds its setting very well.  Each cut comes out identical because the saw locks firmly at the detent stops.  Likewise, the dual rails and clamping mechanism prevent any twist or flex during sliding cuts, maintaining the blade alignment from start to finish . This construction yields consistently straight cuts even on long boards.

Level and Indicators: An extra minor feature is the small built-in bubble level next to the miter handle that can override the detents. If you want an exact angle not in the stops (e.g. 37°), you can press a small button and use the integrated level to find the setting.  The DEWALT manual covers this feature. While not often mentioned in casual reviews, it adds to confidence that you can set any angle with a visual guide.

In practice, most users do not find it necessary to constantly readjust the saw.  Comments on user forums and reviews like HomeFixated are glowing about the DWS779’s accuracy and durability .  One reviewer sums it up: “the saw was set up to make perfect cuts right out of the box” and it is “completely adjustable” if it ever does go out of alignment .  This combination of precision and serviceability means beginners and pros alike can trust the cuts from this saw.

Ease of Use and Setup

 

For a saw of this size, the DWS779 is remarkably straightforward to set up and operate. Out of the box, the saw comes fully assembled.  The Home Tool Belt review confirms that the only steps to start cutting are: remove packaging, plug in the power, and pull the lock-down pin .  There’s no complicated assembly required – this saw is ready to work immediately, saving time for the user.  The blade is already mounted and there’s a material clamp and dust bag included in the package.

Weight and Portability: At 56 lb, the DWS779 is not a lightweight unit, and reviewers note this.  DEWALT markets it as “compact and lightweight” relative to its capacity, but in absolute terms it will challenge one person to carry long distances.  That said, it has an integrated handle on top and is somewhat portable.  Professionals often pair it with a wheeled stand or carriage system.  Her Tool Belt even suggests using a mobile stand or miter saw station if you plan to move the saw around frequently .  On a fixed bench, the weight is an advantage (stability).  There is also a convenient lock-down pin that secures the head in the down position for transport . This pin must be disengaged before cutting, but it is easy to pull out and push back in.

Operating the Saw: The controls are intuitive.  With one hand on the handle and the other on the trigger, you simply squeeze to start the blade, wait for it to reach full speed, then lower into the material.  The table’s bevel and miter mechanisms are operated with a knob and cam handle, as described.  Reviewers report that the handle is easy to push down – it requires minimal force even when the head is tilted (this is thanks to a link under the handle that assists the movement) .  In other words, even a day’s worth of cuts will not tire your arm.

Dust Bag and Vacuum Port: A dust collection bag is included and mounts easily behind the blade shroud.  For more demanding cleanup, the saw has a 1-1/4″ diameter dust port (as noted in specs) that accepts shop vacuum hoses.  Many users find the built-in bag decent for light debris, but for cleaner air they attach a vacuum hose (there are aftermarket adapters if needed).  The DWS779’s 75% dust collection efficiency rating is about average; as with most miter saws, it will throw some fine dust. Using the dust bag or vacuum helps a lot when cutting a lot of material.

Depth Stop: A less obvious but useful feature is the depth stop, used for making controlled grooves or rebates.  DEWALT includes a small adjustable stop behind the blade .  The user can set the depth (like a rabbet or partial plunge cut) by adjusting a thumb screw.  For example, making a half-lap joint is trivial: dial in how deep you want the cut, lower the blade until it hits the stop, and then continue the cut.  Her Tool Belt specifically praises this feature for half laps .  This kind of precision means you can do joinery work with the DWS779 beyond just straight cuts.

Overall, the DWS779’s design is user-friendly for both novices and experienced carpenters.  The learning curve is not steep: if you’ve ever used a miter saw before, you’ll pick up this model immediately.  Even the angle switches and locks feel robust yet smooth.  For first-time owners, one must note the extra steps for sliding: always keep the head fully raised (and lock pin out) when extending the rails, as DEWALT’s instructions emphasize.  But once accustomed, sliding cuts become second nature.  The included manual and DEWALT’s safety guidelines are thorough, covering everything from the electric brake (which stops the blade upon trigger release) to hand positioning during operation.  In day-to-day use, the DWS779 proves straightforward: pull the trigger, the blade spins up, then lower smoothly to cut, then allow the brake to stop the blade before lifting it again .

Safety Features

 

Safety is built into the DWS779’s design to protect the user during operation. One key feature is the automatic electric brake.  When the operator releases the trigger, an internal mechanism rapidly slows and stops the blade (in about 0.5 seconds) .  This means you aren’t waiting for the blade to coast—improving safety and reducing downtime between cuts.  The manual notes that on rare occasions the brake may skip, but a quick on/off cycling usually resets it .  Regardless, best practice is always to wait for the blade to fully stop before raising it from the workpiece.

The blade guard automatically covers the blade. It retracts when you lower the saw and springs back to cover the top of the blade when you lift it.  This shields the user from the spinning blade except for the cutting path.  The guard also helps funnel chips toward the dust port.  DEWALT emphasizes through labels and manuals that hands should never be within 4″ of the blade, and users follow this rule by always holding the work firmly on the fence.

The previously mentioned lock-down pin is another safety/transport feature .  By locking the head down, it prevents accidental lowering while moving the saw.  (Importantly, do not use the lock pin to hold the head during cutting – only for moving or storage.)  This pin is clearly labeled in the manual, and releasing it simply requires pressing the head down and pulling out the pin.

DEWALT also includes a large cable guard and strain relief at the motor end to protect the power cord from damage.  The overall ergonomics ensure that common misuse (like cutting on the bottom side of the blade) is not possible.  Additionally, a padded handle and a fully enclosed trigger help prevent slips.

Finally, the DWS779’s performance features indirectly enhance safety: the power and smoothness mean no binding or jerking that could pull the board or saw unexpectedly.  The solid fences and clamp (included) allow securing the workpiece in place during cutting.  While no machine is foolproof, in practice the DWS779 has the expected safety elements of a modern miter saw, combining an automatic brake, guards, and lock features.  Users in reviews often note the quick stops and clean operation, giving confidence when making repetitive cuts.

Dust Collection

 

Sawdust on the jobsite is not only messy but can be hazardous to breathe. The DWS779 comes with a dust collection system designed to capture debris at the source.  A fabric dust bag clips onto the rear of the blade shroud to catch chips and larger dust.  DEWALT claims this system captures over 75% of the dust , which is among the more efficient designs for corded miter saws.  In practical terms, using the bag greatly reduces dust on the table and floor for typical framing or trim cuts.

For maximum dust control, DEWALT also provides a standard 1¼″ dust port (rear-facing) that accepts a shop vacuum hose.  Many users opt to attach a vacuum, which can eliminate the majority of airborne dust.  (Note: some after-market attachments improve airflow if needed.)  HomeFixated’s review mentions the provided DW7053 dust bag and how the clamp prevents flying debris .  When cutting plaster-laden or particle-board materials, the vacuum setup is recommended to protect lungs.

Despite the good dust collection, expect that some fine dust will escape. It’s wise to wear a dust mask or respirator when cutting large volumes of MDF or composite materials.  But overall, the DWS779’s system is well above average for this class of saw.  By capturing most of the chips, it also helps keep the workpiece cleaner and the kerf visible, which can slightly improve accuracy and line-of-sight.

Real-World Usage Scenarios

 

The versatility of the DWS779 shines through in a wide range of real-world applications. Below are several scenarios illustrating how different users might employ this saw in practice:

• DIY Home Renovation: A homeowner updating trim or building custom shelving can handle all tasks with one tool.  For example, when installing new baseboards and crown molding, the DWS779’s dual bevel and tall fence mean you can cut nested crown (up to 7½″) and tall baseboard without switching tools.  Picture a weekend project cutting multiple 90° and 45° angles for wainscoting – this saw’s detents and positive stops speed up repetitive miter cuts.  The powerful motor ensures even 2×4 or 2×6 lumber for a deck railing or garden gate is cut cleanly.

• Professional Contractor (Framing): On a building site, speed and capacity are crucial.  A framing carpenter can use the DWS779 to chop studs to length, cut 2×12 rafters at compound angles, or miter 5/4″ decking boards quickly.  The sliding rails allow long 12′ 2×6 boards to be cut in one pass by sliding the head forward, which is a big time-saver.  The 15A motor won’t hesitate on pressure-treated lumber.  The contractor would appreciate the onboard work clamp for holding rough material steady, and the solid fences to handle heavy boards.  Though the saw is heavy, on-site crews often mount it on a mobile stand or dedicated roller cart for portability between rooms.

• Finish Carpenter / Woodworker: For precision trim work or joinery, the DWS779 excels too.  A cabinetmaker or furniture builder might use it for straight crosscuts of hardwood panels and for fine trim work.  The smooth cutting action and minimal vibration help achieve chip-free cuts in plywood or fine hardwoods.  The user can swap in a fine-tooth blade (80+ teeth) for picture-frame joinery, dovetail inlays, or crown molding in lacquered wood, resulting in glass-smooth finishes.  The half-lap depth stop can be used for inlay joints or drawer groove rabbets.  Professionals on finish trim will use the quick bevel stops (45° right/left) for compound crown and the left-right beveling to ease scribing jobs.

• Custom Carpentry / Modular Building: A user building modular panels or custom furniture can rely on the saw’s ability to cut large sheet goods.  For instance, a baseboard held vertically (up to 6¾″) can be mitered without a separate table saw.  Likewise, a craftsman might use the saw to cut custom picture frame moldings up to 7″ tall by flipping them on the fence.

 

In all these scenarios, the key point is that the DWS779 handles tasks that would otherwise require multiple saws.  Its wide cutting span, combined with precise angle settings, makes it a one-stop solution in many shops.  Real-world feedback from sources like 731 Woodworks confirms this versatility; the author notes he “did a lot more [with the sliding feature] than [he] thought [he] would” and feels the extra cut width is frequently useful .  Another user emphasizes that the 60° miter range to the right has been “handy more times than I can count” for odd-angle cuts.

Durability and Build Quality

 

Given that contractors rely on it day after day, durability is a must. The DWS779 is built tough.  Its main components (base, fence, rails) are made of heavy metal (mostly magnesium and aluminum alloy), chosen for rigidity and wear resistance.  The polished steel rails are resistant to bending or kinking under load.  DEWALT’s own materials testing suggests this saw can withstand harsh jobsite conditions.

In practice, users report that the saw holds up well.  The shared feedback is that it “works like a champ” even on demanding cuts .  No unusual failures or flexing are mentioned in reviews.  The cam-lock miter handle and bevel knobs are metal and lock solidly; there’s no plastic play in those mechanisms.  The guard and plastic components (like housing) are thick and don’t crack easily.  If anything, the saw’s slight drawback is its weight (which is a byproduct of its sturdy build).

For further reassurance, DEWALT covers the DWS779 with its 3-year limited warranty .  That warranty is quite competitive — it includes 1 year of free service and a 90-day money-back guarantee, meaning that DEWALT will repair defects for up to three years.  For professionals, that warranty period is on par with other high-end miter saws.  It shows DEWALT’s confidence in the saw’s longevity.

In summary, the DWS779’s build quality is solidly pro-grade. It’s designed for heavy use, and feedback suggests it earns that rating. When discussing durability, one user flatly calls the saw “precision at its toughest” , implying it can take abuse. And indeed, given its simple proven mechanical design (no complex electronics, no laser, just belt-and-pulley drive), there are few failure points. Routine maintenance is minimal: keep the gears lubricated (per manual), replace blades as needed, and tighten fasteners if you knock the saw over. With that, a well-cared-for DWS779 should last for many years of cuts.

Ease of Setup and Portability

 

One often overlooked factor is how easy the saw is to unpack, assemble, and move when needed.  The DWS779 scores well on initial setup: as noted, it comes fully assembled from the factory .  Unboxing this saw involves removing protective foam and plastic, attaching the dust bag, and plugging it in.  DEWALT provides a comprehensive manual with diagrams, but in most cases even a quick-start tour is all that’s needed.  The most “assembly” a user might do is attach the material clamp or optional accessories.

After that, setup for cutting is straightforward.  Aligning the fence square (if needed) can be done with the bevel and miter knobs, as the saw provides adjustments.  HomeFixated’s author says that both fence and blade were already square “dead on” right out of the box .  That means minimal fiddling is needed before you can start working.  If an adjustment is required (e.g., calibrating the detent plate), it’s a simple matter of loosening a few screws.

Portability: Despite its size, the DWS779 is somewhat portable.  It has a rigid top handle molded into the frame, which is comfortable to grip.  If you unplug it and secure the head with the pin, you can carry it by this handle.  Because it is 56 lb, expect that one person can carry it a short distance, but long moves would be exhausting.  On larger jobsites or home workshops, many people place it on a specialized saw stand or wheeled cart.  DEWALT and third parties sell compatible rolling stands that make transporting the saw easy.  The saw’s somewhat compact footprint (17″ high × 24¾″ deep) also helps it fit into vans or tight storage areas.

For context, 56 lb is heavy for a handheld tool but light for a table saw – the DWS779 is in between.  The “compact” claim refers to its design efficiency (it’s not much larger than many non-sliding saws of lesser capacity).  In practice, professional users accept this weight in exchange for the extended capabilities.  Just be sure to use the lock-down pin when carrying so the head doesn’t swing.

First Cuts: When you do get started cutting, the user experience is pleasant.  The trigger has a safety lock (you press a small tab to allow pulling it) to prevent accidental starts.  Upon squeezing the trigger, the motor ramps up quickly to 3800 RPM.  The action of lowering the saw into the material is smooth and requires minimal force (thanks to the low-mounted motor and belt-drive, as noted in reviews ).  Releasing the trigger immediately stops the saw (brake kicks in), which means you can release and reposition quickly for the next cut.

Overall, setting up and using the DWS779 is as simple as can be for a professional power tool of this size.  Even a novice carpenter would likely be comfortable after a few minutes of instruction.  All the controls are logically placed and labeled.  The inclusion of common accessories (blade wrench, clamp, dust bag, manual) means nothing is missing.  In short, there is little to slow you down from the moment you unbox it to the moment you start making cuts.

Safety Features

 

Safety is paramount on the jobsite, and the DWS779 includes several features to protect operators.  The automatic electric brake is one of the most important. As soon as you let go of the trigger, the saw’s electronic brake engages and stops the blade in about half a second .  This is much faster than letting a spinning blade coast, reducing the chance of injury.  DEWALT cautions that on very rare occasions the brake may “skip” but simple cycling the power fixes it .  In use, one feels that the blade comes to rest almost immediately, which also speeds up workflow.

The blade guard is another key safety component. It automatically covers the top of the blade at all times, and retracts only when the blade is fully lowered into the cut.  This passive guard (made of semi-transparent polymer) prevents accidental contact with the spinning blade.  DEWALT’s manual emphasizes hand placement guidelines: keep hands at least 4″ from the blade, and always hold the work against the fence until the blade stops . The saw’s design makes it easy to follow these rules.

The lock-down pin (mentioned earlier) doubles as a safety feature during transportation .  By locking the head down, it prevents the saw from suddenly lowering during a move, which could cause harm or damage.  (The manual explicitly warns not to use the lock pin during cutting – it’s solely for moving or storage .)

DEWALT also built the miter detents and stops with user safety in mind. For example, the miter range is limited to ±60°, which is plenty, but it doesn’t try to force an awkward full 90° tilt of the head, which would be unsafe.  The bevel lock knob is large and easy to grip, so it won’t slip out of adjustment accidentally.  The main power switch has a lock-off lever, requiring deliberate action to start the saw.

In summary, the DWS779’s safety features meet professional standards: electric brake, full blade guard, safety lock triggers, and secure transport pin.  Coupled with sound operating practice, these features make the saw safe for daily use on a range of projects. Reviewers have noted that the brake and guards work very well – for example, when making multiple cuts, one user observed that he could release the trigger and have complete confidence that the blade would stop instantly . Always, of course, wear eye and hearing protection and use the provided clamp for small or thin pieces to ensure the highest level of safety.

Warranty and Support

 

DEWALT backs the DWS779 with a 3-Year Limited Warranty, 1-Year Free Service, and a 90-Day Money-Back Guarantee . This is a strong warranty package: the 3-year term is on par with or better than many competitors in the 12″ sliding saw category.  It covers defects in materials and workmanship under normal use. The 1-year service plan means DEWALT will service and repair the saw once for free within the first year (beyond standard warranty repairs).  The 90-day satisfaction clause is useful if a customer is unsure about the fit of the saw – they can return it if it doesn’t meet their needs.

These terms indicate DEWALT’s confidence in durability.   Professional tools like this often get heavy use, and a generous warranty provides peace of mind.  For contractors, knowing that a major defect would be covered for 3 years is crucial.  Many DEWALT owners also report that DEWALT’s customer support is responsive and that replacement parts (like blades and accessories) are readily available.

When considering reliability and long-term support, it’s worth noting that the DWS779 design has been around for several years and is proven in the field . DEWALT continues to produce it without major changes, and owners rarely mention failure rates.  Of course, proper maintenance (e.g. keeping the saw clean, lubricating the rail bearings periodically) will extend the life.  In the unlikely event something does go wrong, the DEWALT service network and spare parts distribution are extensive.

In the context of a buying guide, warranty and brand support are factors to weigh.  Here, DEWALT matches industry norms and provides solid coverage.  For a saw at this level, buyers expect a couple of years of worry-free operation, and DEWALT delivers that.

User Experience and Feedback

 

While specifications tell one story, actual user experience adds perspective. We have quoted parts of expert and user reviews throughout, but here’s a summary of what owners say about the DWS779 after using it on real jobs:

• Positives: Users frequently praise the DWS779 for its power, accuracy, and versatility.  For example, one woodworker who has owned it over a year states that the saw “still cuts clean” using the original blade, and that being able to miter up to 60° has been extremely useful .  Another calls it “precision at its toughest,” noting that the dual-steel rails deliver an “accurate, durable” platform .  The general consensus is that cuts are very square, adjustments are easy, and the range of cuts you can do is impressive.  Many highlight the sliding function as a big plus that greatly increases the saw’s usefulness.

• Blade and accessories: As noted, the included blade is serviceable but not exceptional.  Several users mention upgrading the blade for fine woodworking . The supplied clamp, dust bag, and blade wrench are seen as handy add-ons.  (The blade wrench even has a built-in hex bit to access adjustment screws .)  The built-in dust bag gets a nod for reducing debris.

• Ergonomics: The handle is comfortable and the saw is easy to use for extended periods.  Despite the weight, reaching adjustments and controls is intuitive.  The table has convenient storage spots (e.g. a nook for the blade wrench ).  Some users wished for wheels or a stand, but that’s not unique to DEWALT; it’s true of most large miter saws.

• Negatives: Few complaints appear in reviews.  The most common suggestions for improvement are: including an integrated work light or laser guide (which this model lacks – only the pricier DWS780 has it ), and providing a higher tooth-count blade.  One reviewer politely says the depth stop is useful “but could be more solid” (some models have heftier stops).  Also, as we noted, portability is limited by weight; if you need extreme portability, a smaller saw would be better.  However, these points are generally minor.  DEWALT knows what users want, and the DWS779 covers nearly all the bases for a large slide saw.

• Durability: Long-term feedback is positive.  Many references say they’ve used the DWS779 for months or years with zero issues.  No widespread quality problems are reported on forums.  Some DIYers even compare it to cordless models, noting that “corded miter saws like this one never run out of juice and have no brush maintenance.”

 

In sum, the user experience with the DWS779 is overwhelmingly good.  Words like “solid”, “powerful”, and “accurate” come up again and again in comments.  It is regarded as a professional tool that can handle the toughest everyday cuts on a jobsite.  This matches our thorough examination of its specs and build: the DWS779 truly is a pro-grade sliding compound miter saw that performs in the field.

Buying Guide: How to Choose a Miter Saw

 

If you’re considering the DWS779 or any miter saw, it helps to understand the key factors in your purchase decision. Below we break down important criteria and explain how the DWS779 fits the bill:

• Saw Type (Sliding vs. Non-Sliding): Sliding miter saws move the blade forward/back on rails, offering longer crosscut capacity.  The DWS779 is a sliding model, ideal if you need to cut wide boards (e.g. 2×10/2×12).  If you only cut narrow stock (like trim under 6″), a non-sliding saw might suffice and be lighter.  However, the extra capability of sliding saws is invaluable for construction work.

• Blade Diameter (8½″, 10″, 12″): Larger blade = larger cuts.  The DWS779’s 12″ blade allows cutting wider and thicker boards than a 10″ saw.  It gives roughly 25% more crosscut capacity.  If you often work with 2×10, 2×12, or large moldings, a 12″ blade is a smart choice.  Keep in mind, bigger blades and motors make the saw heavier (as with the DWS779).

• Motor Power (Amps): A 15 Amp motor, like on the DWS779, is standard for high-end corded saws.  More amps means the saw can maintain speed under heavy load.  For basic trim work a 10–12 Amp saw might do, but for thick or hardwood boards, 15 Amp provides a smoother cut with less bogging .  DEWALT’s 15 A motor on the DWS779 is designed to power through “tough materials” like dense hardwood and large dimensional lumber .

• Bevel (Single vs. Dual):  Single-bevel saws tilt only one direction; dual-bevel (like the DWS779) tilts both left and right.  Dual-bevel is highly convenient when making compound cuts in cabinetry or molding, as you don’t have to flip the board.  If you frequently need angled bevels on both sides of a piece, dual-bevel is worth it.  Note that single-bevel saws can be lighter, but at the cost of flexibility.  Given its professional target, the DWS779 has dual-bevel (0–50°/0–60°) .

• Miter Range: The DWS779 offers 60° right and 50° left, which is generous.  Higher-end saws often give 50–60°; entry-level saws might limit to 45° each.  Unless you cut unusually wide crown, 50–60° is usually enough for everything else.  Check the spec: DWS779’s range will cover almost any framing or trim angle .

• Fence Height: Taller fences mean you can cut thicker stock.  Compare fence heights if you do moldings.  The DWS779’s 7½″ crown capacity and 6¾″ base capacity are excellent.  In buying, look for specs on molding capacity: higher values mean more versatility for finish work.  DWS779 excels here .

• Accuracy Features (Detents, Scales): Precision elements like positive stops, clear scales, and good guidance impact how easy it is to get accurate cuts.  The DWS779 has a stainless detent plate with 10 stops , a machined cast base, and oversized scales.  When comparing models, note if they have such stops (which speed up setup) or laser/LED guides (for alignment – DWS779 has none of these).

• Dust Collection: If you care about cleanliness or work indoors, check dust system design.  The DWS779’s reported 75% efficiency is above average; some cheaper saws might do only 50–60%.  Also see if a saw has a vacuum port vs. just a bag.  DWS779 has both (bag + 1¼″ port).

• Portability and Stand: For jobsite use, consider weight and whether it pairs with a rolling stand.  At 56 lb , the DWS779 is on the heavier side, so you’ll likely use a stand.  If you need to carry the saw often, lighter single-bevel models exist (but of course with lower capacity).

• Safety: Look for electric brake (standard on DEWALT’s pro saws) and good guards.  The DWS779 includes an electric blade brake , which many buyer guides note as a must-have for safety and convenience.  Also ensure the saw has a robust blade guard and lock mechanisms; DEWALT’s design is up to industry norms here.

• Budget and Value: The DWS779 is a higher-end saw and is priced accordingly.  It may cost more upfront than a 10″ or basic single-bevel saw.  However, you get a premium build and capabilities.  If your projects demand its features, the price is justified.  If you primarily do small trim, a cheaper model might suffice.  Either way, prioritize features you will actually use: buying a saw for a rare large cut may be overkill.

 

In summary, the DEWALT DWS779 stands out in each of these criteria: it has a powerful motor, large blade, excellent cutting capacity, and dual bevel.  It scores high on accuracy, dust control, and durability.  Your main trade-off is weight and cost.  For contractors and serious hobbyists who need its capabilities, these trade-offs are acceptable.  For someone with light occasional needs, a smaller or less expensive saw might be a better match.

Ultimately, pick a saw based on your needs: if those include crosscutting 2×12 framing or making compound crown cuts without fuss, the DWS779 is designed to meet those needs .  It represents a professional-level investment.  Use the checklist above to compare other saws: motor power, blade size, bevel/miter range, and special features.

Safety Recap

 

Before moving on, a quick recap of safety points when using a saw like the DWS779:

• Always wear safety glasses and hearing protection.

• Keep the lock-down pin in the carrying position when moving the saw.

• Double-check that the blade guard is functioning before each use.

• Secure your workpiece against the fence; use the built-in clamp for small or offcuts.

• Stand to the side of the blade, not directly behind it, and never cross your arms.

• Allow the blade to reach full speed before lowering, and allow it to stop completely after releasing the trigger .

 

The built-in safety features (electric brake, guard, bevel/miter locks) greatly reduce risk, but user vigilance is always required.

Conclusion

 

The DEWALT DWS779 12-inch Sliding Compound Miter Saw is a top-tier tool designed for those who demand performance and versatility.  Its powerful 15A motor, large 12″ blade, and dual-bevel, sliding design give it the ability to make cuts that simpler saws can’t match.  It can handle anything from wide crosscuts of 2×12 lumber to precision compound crown molding angles, all while maintaining excellent accuracy thanks to its sturdy build and fine adjustment controls .

Throughout this review, we’ve seen that the DWS779 excels in every category: it offers robust durability and a long warranty, precise cutting thanks to quality rails and stops, thoughtful ease-of-use with out-of-box assembly and intuitive controls, and solid safety features including an electric brake .  User feedback reinforces these strengths, calling it “precision at its toughest” and praising its clean, square cuts .

Of course, no tool is perfect. The DWS779’s main compromises are its size/weight and the basic stock blade.  If you do not need its extra capacity or if you move your saw frequently, a smaller model might be easier to handle.  But for its class – and especially for contractors or serious woodworkers – the trade-offs are minimal.  For example, its 56 lb weight is typical for a premium 12″ slider (Lowe’s spec calls it “compact” at 56 lbs given what it can do).  And swapping the blade is an easy fix if you want smoother cuts.

As a buying guide, remember what matters to you: if you need wide cuts and compound angles often, this saw is tailor-made for you.  If you were on the fence about whether to “go slider” or stick with a simple miter saw, consider this: one reviewer who wasn’t sure if he’d use the extra width admitted he ended up using it “a lot more than I thought I would” .  Sliding capability often adds value that you only appreciate once you try it.

In closing, the DEWALT DWS779 is a formidable tool that has earned its reputation among DIYers, contractors, and woodworkers alike.  Its balance of power, precision, and versatility is hard to beat in a corded miter saw.  If you want a saw that can grow with your projects and withstand heavy use, the DWS779 is an excellent choice – just as the title suggests, it truly is an in-depth pick for anyone shopping for a high-end 12-inch sliding compound miter saw .  By keeping criteria like motor power, blade size, accuracy, and dust collection in mind, you’ll confirm that this model ticks all the important boxes for professional-grade woodworking or serious DIY projects.