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DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)
DEWALT

DEWALT 20V MAX Circular Saw

Bottom line: The DEWALT 20V MAX Circular Saw ($99.00 on Amazon as of 2026-10-21 14:15 UTC): 5,150 RPM motor rips 2x lumber and sheet goods in one pass; main trade-off: bare tool: the 20V MAX battery and charger are not included.

$99.00

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Buy on Amazon — $99.00 Compare to similar joysticks & game port

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 5,150 RPM motor rips 2x lumber and sheet goods in one pass
  • ✓ Cuts 2-1/8 in deep at 90 degrees, 1-5/8 in at 45 degrees
  • ✓ Magnesium shoe stays light without flexing off the cut line
  • ✓ 0-50 degree bevel range covers rafter and compound cuts
  • ✓ Keyless blade change with spindle lock; carbide blade included

Cons

  • ✗ Bare tool: the 20V MAX battery and charger are not included
  • ✗ 6-1/2 in blade tops out at 2-1/8 in depth, less than a 7-1/4 in saw
  • ✗ Included 18-tooth blade is framing-focused; finish cuts need a finer blade
  • ✗ Runtime is unlisted and depends on which 20V MAX pack you supply

Manufacturer description

The DEWALT 20V MAX Circular Saw (DCS391B) is a cordless sidewinder built for the cuts you would otherwise drag a corded saw and an extension cord across the jobsite to make. Its 5,150 RPM motor drives the included 6-1/2 inch, 18-tooth carbide-tipped blade through framing lumber and sheet goods, reaching 2-1/8 inches of depth at 90 degrees and 1-5/8 inches at 45 degrees, so 2x material clears in a single pass. The high-strength magnesium shoe keeps the saw light without giving up the rigidity that holds a cut line straight over a long day, and the bevel adjusts anywhere from 0 to 50 degrees…

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SpecPicks Verdict

SpecPicks scored DEWALT 20V MAX Circular Saw using a rating × review-volume × price-fit model applied to published specs and reviews across the joysticks & game port category. DEWALT's joysticks & game port lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for joysticks & game port of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does the DEWALT DCS391B come with a battery and charger?

No. The DCS391B ships as a bare tool, so the 20V MAX battery and charger are sold separately. A 6-1/2 inch 18-tooth carbide-tipped blade is included.

How deep will this circular saw cut?

Maximum cut depth is 2-1/8 inches at 90 degrees and 1-5/8 inches at 45 degrees, which clears 2x dimensional lumber in a single pass at both angles.

What blade comes with it, and how hard is it to change?

It includes a 6-1/2 inch 18-tooth carbide-tipped blade. Blade changes are keyless and use a spindle lock, so no wrench hunt is needed to swap in a finer-tooth blade.

Can it make bevel cuts, and how far does the shoe tilt?

Yes. The magnesium shoe bevels from 0 to 50 degrees, which covers standard 45-degree miters plus the more aggressive angles used in rafter and compound cuts.

Is it powerful enough for regular framing work?

The 5,150 RPM motor is aimed at lumber and sheet goods. It carries a 3-year limited warranty; check the product listing for current terms.

Key Features

  • 5150 RPM motor delivers power and speed to make the most demanding cuts with ease
  • High strength and lightweight magnesium shoe provides jobsite durability for long-term cut accuracy
  • Optimized rubber over molded comfort grip delivers optimal balance and control of electric saw for wood cutting
  • 0-50° bevel capacity allows for aggressive bevel cuts for a multitude of applications
  • 6-1/2 inch 18-tooth carbide-tipped blade included for cutting 2 times material at 90° and 45° and more cuts per charge. Maximum cut depth @ 90°: 2-1/8 inches (2.125 in). Maximum cut depth @ 45°: 1-5/8 inches (1.625 in)
  • 3 Year Limited Warranty

Full Specifications

BrandDEWALT
ColorYellow
Speed5100 RPM
Voltage20 Volts
Unit Count1.0 Count
Blade ShapeRound
Blade Length6.5 Inches
Model NumberDCS391B
Power SourceBattery Powered
Cutting Angle50 Degrees
Warranty TypeLimited Warranty
Blade MaterialHigh Speed Steel
Item Type Name20V MAX Li-Ion Circular Saw
Number of Teeth18
Specification Met(unset)
Included Components20v 6-1/2" circular saw
Number of Batteries1 Lithium Ion batteries required.
Surface RecommendationWood
Manufacturer Part NumberDCS391B
Item Dimensions L x W x H15.5"L x 8.5"W x 10.5"H
Full listing titleDEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)

Ready to buy?

DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $99.00

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)
$99.00
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