DEWALT DCS578B Saw
- Saw
- 7.2 inches
- 1700 watts
- Battery
- Better rated than 62%
- More reviewed than 79%
A capable bare-tool circular saw for owners of DeWalt's FLEXVOLT battery platform, not a starter purchase on its own.
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How it ranks among the 265 saws we track
4.7★ across 1,400 Amazon ratings, Bayesian-smoothed toward the category average.
1,400 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
500+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 265 saws we track - how the scorecard works · full saws data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The DCS578B is DeWalt's 60V MAX FLEXVOLT cordless circular saw, built around a 7.25 inch blade and a brushless motor rated at 1700 watts. This is a bare tool listing (the B suffix), so no battery or charger ships with it.
Sold without a battery, it targets buyers who already own FLEXVOLT or compatible packs and want to add a full-size saw to that platform rather than buy a boxed kit. At 8.2 pounds it sits closer to a mid-size corded saw than a compact trim saw.
- 60V MAX FLEXVOLT platform
- 7.25 inch blade capacity
- 5800 RPM no-load speed
- Bare tool, battery sold separately
Who it's for
Fits contractors and serious DIYers already invested in DeWalt's 60V FLEXVOLT battery system who need cross-cutting and rip capacity close to a corded 7.25 inch saw. Not a fit for anyone starting from zero on batteries, since a compatible pack has to be added on top.
Strengths and trade-offs
Drawn from this product's published specifications.
- Full-size 7.25 inch cutting capacity
- Brushless motor rated for corded-like power
- Compatible with DeWalt's 60V FLEXVOLT lineup
- No battery or charger included
- At 8.2 pounds it's heavier than compact cordless saws
Performance notes
The 5800 RPM no-load speed and 1700 watt motor rating put this in line with corded saws for cut speed, and the high speed steel spec listed refers to the blade material. Real-world runtime and cut quality depend on the battery amp-hour rating paired with it, which isn't part of this listing.
Specifications
| Brand | DeWalt |
|---|---|
| Model | DCS578B |
| Dimensions & fit | |
| Item Weight | 8.2 pounds |
| Capacity & performance | |
| Capacity | 7.2 inches |
| Speed | 5800 rpm |
| Power & efficiency | |
| Motor Power | 1700 watts |
| Power Source | Battery |
| Voltage | 60 volts |
| Construction & materials | |
| Material | High Speed Steel |
Other DeWalt saws
How it compares
This product against the closest alternatives we track in saws.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| DEWALT DCS578B SawThis product | 4.7 / 5 | 1,400 | 4.4 / 5 |
| SKIL 5280-01 SawSkil | 4.7 / 5 | 14,300 | 4.6 / 5 |
| DEWALT DCS391B SawDeWALT | 4.6 / 5 | 11,000 | 4.5 / 5 |
| Milwaukee 2719-20 SawMILWAUKEE | 4.8 / 5 | 6,485 | 4.5 / 5 |
| BLACK+DECKER BDEJS600C SawBLACK+DECKER | 4.7 / 5 | 11,123 | 4.5 / 5 |
Similar saws from other brands
Questions about the DeWalt DCS578B
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the DeWalt DCS578B come with a battery?
No, the B in the model number marks it as a bare tool, so battery and charger are sold separately.
What blade size does the DCS578B use?
It's built for a 7.25 inch blade, matching standard full-size circular saw blades.
What is the no-load speed of the DCS578B?
DeWalt rates it at 5800 RPM.