DeWalt
DeWalt FlexVolt DCS578 Circular Saw
DeWalt's FlexVolt 60V worm-style-power sidewinder, the saw that made corded 7-1/4 in saws optional for framing crews. FlexVolt batteries auto-switch between 20V and 60V, so packs bought for this saw also run every 20V Max tool.
Specifications
Features
Pros
- ✓Rips LVL and wet PT lumber without bogging — owners consistently describe it as indistinguishable from a corded saw.
- ✓The 2-9/16 in cut depth clears 2x material at 45° where 18V-class saws come up short.
- ✓FlexVolt batteries back-feed the whole 20V Max ecosystem, so the big packs pull double duty.
- ✓Electric brake stops the blade fast enough to trust setting the saw down mid-rhythm.
- ✓The rafter hook and blade-left sightline get called out as framer-friendly details.
- ✓Deals routinely put the bare tool under $200, absurd value for the power class.
Cons
- ✗FlexVolt batteries are heavy and expensive — the saw is only as cordless as your budget for 9Ah+ packs.
- ✗At 8.2 lbs bare (more with the big pack) it out-weighs every 18V sidewinder here.
- ✗Overkill for trim and sheet-good work where a compact 20V saw is handier.
- ✗The kit at ~$549 is the most expensive way into this comparison.
- ✗No Tool Connect tracking on this model.
- ✗FlexVolt-only tools fragment the yellow lineup — this saw won't run on your regular 20V packs.
Common Questions
Will my regular DeWalt 20V Max batteries run the DCS578?
Is it actually as powerful as a corded 7-1/4 in saw?
Can it cut through 2x lumber at a 45-degree bevel?
Should I buy the bare tool or the kit?
Is the DCS578 overkill for DIY and trim work?
Compare the DeWalt FlexVolt DCS578 Circular Saw
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