DEWALT FLEXVOLT 60V MAX* Circular Saw with Brake, 7-1/4-Inch, Tool Only (DCS578B)

Product overview

DeWalt DCS578B FLEXVOLT Circular Saw: What to Know

The DCS578B is a 7-1/4" brushless sidewinder saw with a no-load speed of 5,800 RPM, a maximum cut depth of 2-9/16" at 90° and 2" at 45°, and a bevel range up to 57° with stops at 22.5° and 45°. DeWalt's product page rates it at 2,456 unit watts out, which the company says is about 47% more power than the DCS575, the 60V MAX saw it effectively replaced in DeWalt's lineup. It includes an integrated LED for cut-line visibility and an electronic brake that stops the blade shortly after the trigger releases.

The DCS578B model number denotes the bare tool; DeWalt also sells this same saw head as part of kitted packages such as the DCS578X1 (one FLEXVOLT battery) and DCS578X2 (two FLEXVOLT batteries), which include a battery, charger, and kit bag at a higher price than the tool-only listing. Buyers comparing prices across DeWalt's own site and retailers need to check which suffix they're looking at, since the bare tool and the kits are frequently listed side by side.

A detail that's easy to miss: DeWalt's own product page specifies this saw runs on "FLEXVOLT 20/60V MAX" batteries, but that phrasing describes FLEXVOLT batteries that can operate in both 20V and 60V tools, not standard 20V MAX batteries running this saw at reduced power. In practice, the DCS578B needs an actual FLEXVOLT-branded battery (such as a DCB606 or DCB609) to run; DeWalt's ordinary 20V MAX battery packs, which are far more common in DeWalt's cordless lineup, are not compatible with this saw at all. That's a real added cost for anyone whose existing DeWalt batteries are 20V MAX-only rather than FLEXVOLT.

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