Illustration: blade diameter to scale; body approximate · product photo coming soon

Circular saw · DeWalt 20V MAX

DeWalt ATOMIC 20V MAX Brushless 4-1/2" Circular Saw

DeWalt battery owners who want a small, unintimidating saw.

82Beginner score out of 100 — how we calculate it

We don't list prices — they change daily. Tap a retailer to see today's price.

· See it at real size · $$ · mid tier

What we like

  • Electronic blade brake
  • Removable auxiliary handle for control
  • Uses common DeWalt 20V batteries

Keep in mind

  • Heavier than the WORX for the same blade size
  • 45° depth not published

Specs, with sources

Blade size4-1/2" (115 mm)source ↗
Max cut depth at 90°1.55"source ↗
Max cut depth at 45°Unverified
Bevel range0–45°source ↗
No-load speed4,500 RPMsource ↗
Blade sideUnverified
Electric brakeYes (electronic)source ↗
Guard / dustOn-board dust portsource ↗
Voltage20V MAX (18V nominal)source ↗
Battery familyDeWalt 20V MAXsource ↗
Weight (tool only)5.5 lbsource ↗
Weight with batteryUnverified
LengthUnverified
HeightUnverified
Brushless motorYessource ↗
In the boxDCS571B tool only; DCS571P1 kit adds 5Ah battery, charger, bagsource ↗
WarrantyUnverified
Noise (declared)91 dB(A) sound pressure (EU-declared)source ↗
Vibration (declared)Unverified
Colorsyellow/blacksource ↗

Note: Max depth 1-11/20" (39.5 mm) at 90° per manual; DeWalt says it cuts 1x material at 45° but doesn't publish a 45° number.

Specs checked 2026-10-24. Spot something out of date? Tell us.

Similar tools to compare

Pairs well with

Blade

24-tooth framing blade (match your saw's size & arbor)

The everyday blade for 2x4s and deck boards: fast, forgiving cuts.

Check price →
Blade

40–60 tooth fine-finish / plywood blade

More teeth = cleaner edges and less splintering on plywood and shelving.

Check price →
Guide

Kreg Accu-Cut or Rip-Cut style saw guide

A straight edge you clamp down makes perfectly straight cuts much easier — huge confidence boost.

Check price →
Support

Folding sawhorses + a sheet of foam board

Support the board on both sides of the cut so it doesn't pinch the blade.

Check price →
Safety

Safety glasses (ANSI Z87.1) & ear protection

Saw manuals call for eye protection; cordless saws are loud (DeWalt declares 91 dB(A) for its compact saw).

Check price →
Clamps

A pair of quick-grip bar clamps

Hold the workpiece and the guide so both hands stay on the saw.

Check price →
0 selectedCompare now →