The DEWALT DCS570B is the cordless circular saw I keep on the truck for framing and deck work. It replaced a corded Skilsaw HD77 that I still use for production sheathing days, but for everything else the cordless saw has earned its place. After twelve months of daily use, the magnesium shoe is still flat, the brushless motor still hits its no-load 5800 RPM, and the electric brake still stops the blade in under two seconds.
Why you should trust this review
I run a small remodeling and finish carpentry crew. I bought the DCS570B bare at retail because I had moved most of my cordless tools to the DEWALT 20V MAX platform. The saw has been used on three full deck rebuilds, two small additions, several porch repairs, and the steady stream of cutoff work any carpentry job demands. None of the testing was sponsored by DEWALT.
How we tested the DCS570B
- Cut 2x10 pressure-treated joists at 90 degrees using a fresh 24-tooth Diablo blade and a 5 Ah pack until cutout.
- Cut full-depth 1-1/2 inch LVL at 90 degrees to test power under sustained load.
- Sheathed a small section of wall (eight 4x8 OSB sheets) on a 6 Ah FlexVolt pack to test runtime.
- Bevel-cut 2x6 at 45 degrees to confirm depth-at-bevel spec.
- Compared cut speed against a corded Skilsaw HD77 worm drive on identical 2x10 cuts.
- Verified shoe flatness using a 24-inch precision straightedge at month 0 and month 12.
- See our methodology page for the standard procedure.
Who should buy the DEWALT DCS570B?
Buy this saw if you already own DEWALT 20V batteries (5 Ah or larger) and need a true full-depth circular saw without dragging an extension cord around. Buy it if you do framing, deck work, or remodel cutoff work where mobility matters more than corded production speed.
Skip this saw if you do all-day sheathing production work (corded is still faster), if you have no 20V batteries (start with a kit), or if you want a sub-7-inch saw for finish trim work (a 6-1/2 inch saw is lighter).
Cut depth and capacity
The 7-1/4 inch blade gives 2-9/16 inches of cut depth at 90 degrees and 1-7/8 inches at 45 degrees. That is the same depth as a corded full-size circular saw, which is the practical reason to buy this saw over a 6-1/2 inch cordless. Through 2x10 (1-1/2 inch nominal) at 90 degrees, the saw cuts in a single pass with no bog-down. Through 1-1/2 inch LVL at 90 degrees, the saw cuts but slows enough that I would not push it through doubled or tripled LVL without a corded saw alternative.
Power and bog under load
DEWALT rates the no-load speed at 5800 RPM. On the LVL test, the saw averaged 4900 RPM under cutting load, which is consistent with what I see from corded saws on the same material. The brushless motor handles repetitive 2x10 crosscuts without slowing across a session, which is the real-world test most pros care about. Compared to a corded Skilsaw HD77 worm drive on identical 2x10 crosscuts, the DEWALT is about 18 percent slower per cut. For framing pace that is not a problem.
Shoe accuracy
The cast magnesium shoe is flat. After twelve months of jobsite drops and bumps, my 24-inch precision straightedge still does not pass any light under the shoe. That is genuinely impressive for a cordless saw. Bevel calibration is set from the factory and remains accurate. The 0-degree detent is positive and repeatable.
Battery and runtime
On the OSB sheathing test, a 6 Ah FlexVolt pack cut all eight 4x8 sheets at depth without cutout, with about 25 percent battery remaining. A 5 Ah XR pack cut six and a half sheets. Below 5 Ah, the saw works but cuts slower under load and the battery sags faster. For production work, plan on 6 Ah minimum and have a second pack charging.
Verdict context
Against the Milwaukee 2732-20 M18 FUEL and the Skilsaw SPT77WML corded worm drive, the DCS570B is the platform-locked DEWALT pick. It is not the most powerful saw in the field. It is the saw that 20V MAX users should reach for first.
DEWALT DCS570B 20V MAX 7-1/4 Inch Brushless Circular Saw vs. the competition
| Product | Our rating | Blade | Depth | Brake | Price | Verdict |
|---|---|---|---|---|---|---|
| DEWALT DCS570B | ★★★★★ 4.5 | 7-1/4 in | 2-9/16 in | Electric | $169 | Top Pick Cordless |
| Milwaukee 2732-20 M18 FUEL | ★★★★★ 4.6 | 7-1/4 in | 2-1/2 in | Electric | $229 | Top Pick Pro |
| Skilsaw SPT77WML-01 Worm Drive | ★★★★★ 4.7 | 7-1/4 in | 2-3/8 in | Mechanical | $189 | Top Pick Corded |
| Hercules 20V Brushless Circular Saw | ★★★★☆ 3.9 | 7-1/4 in | 2-7/16 in | Electric | $99 | Skip for Pro Use |
Full specifications
| Voltage | 20V MAX |
| Motor | Brushless |
| Blade | 7-1/4 inch (20mm arbor) |
| No-load RPM | 5800 RPM |
| Cut depth at 90 | 2-9/16 inches |
| Cut depth at 45 | 1-7/8 inches |
| Bevel range | 0 to 57 degrees |
| Shoe | Cast magnesium |
| Weight (bare) | 8.8 lb |
| Warranty | 3 year limited |
Should you buy the DEWALT DCS570B 20V MAX 7-1/4 Inch Brushless Circular Saw?
The DCS570B is the cordless circular saw most pros on DEWALT 20V MAX should buy. The 7-1/4 inch blade gives full corded-saw cut depth (2-9/16 inches at 90 degrees), the brushless motor handles repetitive crosscuts without bog-down, and the saw runs on standard 20V MAX batteries. Sold bare; pricing assumes you already own platform batteries.
Frequently asked questions
Is the DEWALT DCS570B worth $169 in 2026?+
Yes if you already own DEWALT 20V batteries and have a 5 Ah or larger pack to run it. The 7-1/4 inch full-depth blade and brushless motor put this saw in the same category as corded full-depth circulars. Without batteries, the kit version (DCS570P1) is a better starting point at around $279.
DCS570B vs Milwaukee 2732 FUEL: which cordless circular saw is better?+
Both are 7-1/4 inch full-depth pro cordless saws. The Milwaukee is slightly more powerful under sustained load and runs on the broader M18 ecosystem. The DEWALT is $60 cheaper bare and has a slightly more refined shoe. Choose by the platform you already own.
Will this saw replace a corded circular?+
For framing and deck work, yes. The brushless motor matches corded power on standard cuts. For all-day production use (sheathing 8-foot OSB sheets continuously), corded is still faster because batteries swap and packs cool down.
What battery should I run on the DCS570B?+
5 Ah minimum for steady cutting. A 6 Ah FlexVolt or 8 Ah PowerStack pack is better, both for runtime and for sag under load. The 2 Ah and 4 Ah packs work but the saw cuts perceptibly slower with them.
📅 Update log
- May 9, 2026Refreshed pricing and confirmed warranty terms.
- May 28, 2025Initial review published after 12 months of jobsite use.
