DEWALT DCS391B 20V MAX Circular Saw 6-1/2 Inch

Overview

The DEWALT DCS391B is a 20-volt cordless circular saw with a 6.5-inch blade capacity and a no-load speed of 5,100 RPM, weighing 3.16 kilograms. The high speed steel spec listed refers to the blade material rather than the saw body.

This model is part of DeWalt's 20V MAX cordless lineup, built around a 6.5-inch blade rather than the more common 7.25-inch size, which trims weight for one-handed cutting. The B in the model number typically marks a bare tool listing, sold without battery or charger, so buyers who do not already own compatible DeWalt 20V batteries will need to add them separately.

• 20V MAX cordless platform
• 6.5-inch blade capacity
• 5,100 RPM no-load speed
• 3.16 kg tool weight

Who it's for

Good for a DeWalt 20V battery owner who wants a lighter cordless saw for general framing and sheet goods around the house or jobsite. Not a fit for someone without existing DeWalt 20V batteries and a charger, since those are not included based on the bare-tool model number.

Pros and cons

Performance notes

At 5,100 RPM no-load speed and a 6.5-inch blade capacity, this saw is built for general cutting in dimensional lumber and sheet goods, with the smaller blade size keeping the tool lighter at 3.16 kilograms than full-size 7.25-inch circular saws. As a bare tool, actual run time depends on the battery paired with it.

Specifications

Closest rivals on specs

Milwaukee 2521-20 M12 FUEL Circular Saw 5-3/8 Inch

• Voltage 20 vs 18 volts (+11%)
• Item Weight 6.97 vs 5.8 pounds (+20%)

Skil 5080-01 Circular Saw 7-1/4 Inch

• Voltage 20 vs 120 volts (-83%)

Makita XSH04ZB 18V LXT Sub-Compact Circular Saw

• Voltage 20 vs 18 volts (+11%)
• Item Weight 6.97 vs 4 pounds (+74%)