The 12-inch sliding compound miter saw is the centerpiece tool of any serious trim or finish carpentry operation. Both the Bosch CM10GD and DeWalt DWS779 have earned legitimate professional reputations. The Bosch earns attention with its rear-slide-less design that needs only 3.5 inches of rear wall clearance. The DeWalt earns its reputation with rock-solid accuracy and one of the largest installed bases in the industry. This is a genuinely close comparison.
DeWalt DWS779
Bosch CM10GD wins for shops with limited rear clearance; DeWalt DWS779 wins on cut capacity and the industry's most-trusted accuracy.
Specs Comparison
| Spec | Bosch CM10GD | DeWalt DWS779 |
|---|---|---|
| Max Crosscut (90°) | 14 in. | 16 in. |
| Rear Clearance Needed | 3.5 in. | 18–20 in. |
| Motor | 15A / 3,800 RPM | 15A / 3,800 RPM |
| Bevel Range | 47° left / 47° right | 49° left / 49° right |
| Weight | ~56 lbs | ~65 lbs |
| Blade Diameter | 12 in. | 12 in. |
Space Efficiency and Rear Clearance
The Bosch CM10GD uses Bosch's Axial-Glide system — a synchronized arm mechanism that replaces conventional rails. This eliminates the rear overhang that standard sliding saws require, needing only 3.5 inches of clearance behind the saw. For a small shop where the miter saw sits against a wall, this is transformative.
The DeWalt DWS779 uses conventional slide rails that extend rearward during the cut — requiring 18–20 inches of rear clearance. In a well-planned shop with a dedicated miter saw station, this isn't a problem. In a tight garage shop with a work table against the wall, it forces a different layout.
The Axial-Glide advantage is real for space-constrained shops. In an open production environment, it doesn't matter.
Crosscut Capacity
The DeWalt DWS779 cuts a maximum horizontal capacity of 16 inches at 90° — wider than the CM10GD's 14-inch capacity. For crown molding runs and wide baseboard, that extra two inches occasionally matters.
In practice, most trim and molding work uses boards under 14 inches wide. The DWS779's extra capacity is useful for occasional cuts in wider stock but doesn't change the daily workflow for standard residential trim.
Both saws handle 2x12 lumber at 90° and nested crown up to 6-5/8 inches against the fence.
Accuracy and Bevel System
The DeWalt DWS779 has a reputation for excellent out-of-box accuracy with positive stops that are consistently precise. Woodworking forums cite it as one of the most reliable saws for repeat bevel accuracy — changing from 45° to 90° and back produces consistent results.
The Bosch CM10GD's Axial-Glide mechanism produces a very consistent, smooth cutting arc that many users find more controlled than rail-based slides. Its bevel stops are similarly precise.
Honestly, both are accurate enough for professional finish work. The DWS779 has a larger installed base, so more user feedback and more aftermarket accessories (Dewalt-compatible stand, LED systems) exist for it.
Dust Collection and Motor
Both saws have mediocre dust collection — a common complaint in the category. Connected to a shop vac, the DeWalt captures about 75% of dust; the Bosch is similar. Neither is a Festool.
The DeWalt's 15-amp motor and 3,800 RPM blade speed handle dense hardwoods confidently. Bosch's motor is similarly rated. Neither saw struggles with hardwood trim.
Both saws support a dual-bevel system — no need to flip the workpiece for mirrored bevel cuts, which is essential for production crown molding installation.
Bosch CM10GD Strengths
- Axial-Glide needs only 3.5 in. rear clearance — fits against a wall in a small shop
- Smooth, controlled cutting arc — users report excellent cut feel
- Slightly lighter than DWS779 — easier to transport to job sites
DeWalt DWS779 Strengths
- 16-inch crosscut capacity at 90° — wider than Bosch's 14 inches
- Industry-trusted accuracy and reliable bevel positive stops
- Largest installed base — most aftermarket accessories and community support
Bosch CM10GD Weaknesses
- 14-inch maximum crosscut capacity — 2 inches narrower than DWS779
- Smaller aftermarket accessory ecosystem
DeWalt DWS779 Weaknesses
- Requires 18–20 in. rear wall clearance — can't sit flush against a wall
- Slightly heavier at ~65 lbs vs Bosch's 56 lbs
Best For
- a: Small shop owners and contractors whose miter saw station sits against a wall and can't accommodate rear overhang
- b: Production trim shops and contractors who need maximum crosscut capacity and benefit from a huge installed base of community knowledge and accessories
FAQ
Can the Bosch CM10GD really sit flush against a wall?
Almost — it needs 3.5 inches, not zero. But compared to 18–20 inches for a standard slider, it's a dramatic difference that genuinely changes how a small shop can be laid out.
Does the DWS779 work with a DeWalt stand?
Yes — the DeWalt DWX726 rolling miter saw stand is designed for the DWS779 and a few other DeWalt saws. It's one of the better integrated miter saw stands available.
Is 12 inches necessary, or would a 10-inch slider do the same work?
For most residential trim work, a 10-inch slider handles 95% of cuts. The 12-inch gains you wider crosscut capacity and the ability to cut larger crown without a compound angle setup. For production crown work, 12 inches is worth it.