DeWalt Circular Saws: Models, Specs, and Pricing
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DeWalt splits its circular saw lineup between 20V MAX for lighter cuts and FLEXVOLT 60V for full-size 7-1/4" blades. The DCS573B is the volume seller for contractors who already own 20V batteries, while the DCS578B on FLEXVOLT matches corded power without the cord.
DeWalt 20V MAX / FLEXVOLT 60V Platform
The DCS573B runs on any 20V MAX battery. The DCS578B needs a FLEXVOLT battery (which also works in 20V tools). If you're cutting 2x material all day, the FLEXVOLT is worth the battery investment.
Current Models
DeWalt DCS573B
DCS573B
20V MAX brushless circular saw. Enough power for framing lumber and plywood. Uses standard 20V batteries.
DeWalt DCS578B
DCS578B
FLEXVOLT 60V circular saw. Matches corded power output. Heavier but cuts through hardwood and engineered lumber without bogging.
Specs at a Glance
| Spec | DCS573B | DCS578B |
|---|---|---|
| blade | 7-1/4" | 7-1/4" |
| rpm | 5,500 | 5,800 |
| bevel | 57° | 57° |
| cut depth at 90° | 2-9/16" | 2-9/16" |
| weight | 6.6 lbs | 8.0 lbs |
| motor | Brushless | Brushless |
| Price | $159 bare | $199 bare |
Frequently Asked Questions
Should I get the 20V MAX or FLEXVOLT circular saw?
For occasional cuts and plywood, the 20V DCS573B is fine. If you're framing or cutting hardwood regularly, the FLEXVOLT DCS578B won't bog down the way a 20V saw can on thick material.
Can I use FLEXVOLT batteries in the 20V circular saw?
Yes. FLEXVOLT batteries are backward-compatible with all 20V MAX tools. They're bigger and heavier, but they'll give you longer runtime in the DCS573B.