Price as of Oct 13, 5:29 PM ET. Amazon prices change often; the price in your cart is the one that applies.
One of our picks for Wednesday, October 14, 2026. We haven't tested it. How we pick
The DCS391 is DEWALT's core cordless circular saw. It turns a 6-1/2-inch carbide blade at 5,150 RPM, bevels up to 50 degrees, and cuts through two-by-four dimensional lumber in a single pass at both 90 and 45 degrees. The base is cast from magnesium to stay rigid while keeping tool weight around seven pounds. The blade sits on the left side of the motor, which gives right-handed users a clear sightline along the cut mark.
It suits DIYers and homeowners who already have DEWALT 20V batteries and need a saw for building fences, decks or shelving without dragging an extension cord. Heavy jobsite users cutting wet lumber all day will want the brushless XR models instead.
Worth knowing This is the bare tool (model DCS391B): a battery and charger are not included. It uses a brushed motor rather than brushless, and uses 6-1/2-inch blades rather than the larger 7-1/4-inch size.
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