Power Tools
Craftsman RP 20V 7-1/4" Circular Saw Review: Strong Runtime and Performance Value
A brushless 7-1/4 inch 20V circular saw with 5,000 RPM, clean 90-degree cuts, and a comfortable grip that feels a lot like the best-known competitors.
Introduction
The Craftsman RP 20V 7-1/4 inch circular saw is the brand’s “Runtime and Performance” brushless offering, and it arrives with numbers that put it in serious company: 5,000 RPM no-load speed and a depth of cut of 2-9/16 inches at 90 degrees, with 1-13/16 seconds at 45 degrees listed for its bevel cut spec. The layout is very similar to the well-regarded DeWalt saws, from the way the base bevels to the detents at 22.5 and 45 degrees. To see how it handles real work, we cut through sheet goods and dimensional lumber with several battery sizes and also swapped in a better aftermarket blade.
Performance With Different Batteries
As with any circular saw, the first check was squaring the blade to the base for a perfect 90-degree cut, and this saw came out square right out of the box. With a 2Ah battery and a half-inch OSB sheet, the motor handled the cut without complaint, though that is far from a heavy-duty test.

Moving up to a 4Ah battery made a major difference in speed and should be considered the minimum recommendation for this saw. The 6Ah battery picked up the pace again, and the 9Ah battery made cutting feel effortless, delivering both the best power and the longest runtime for heavier work.
Cutting Dimensional Lumber
Ripping dimensional lumber is where battery size matters most. With the 2Ah battery, the motor audibly bogged through a rip, and the battery ran noticeably warm after just a few cuts. It will get you out of a pinch, but it heats up and delivers less performance over the long term.

With a 4Ah battery, the speed difference was significant, and the 6Ah improved further. For the hardest test, a wet, sappy, knotted piece of lumber, the saw with the 9Ah battery produced a razor-smooth cut with only the bogging you would expect from such difficult wood. Cross cuts with a 4Ah battery were solid, and the 9Ah allowed pushing the saw noticeably faster. At 45 degrees with the depth fully dropped and the 9Ah attached, results were very good.
Handling, Comfort, and Bevel Adjustments
Comfort keeps pace with performance here. The grip is not overly fat, the rubber overmold feels excellent even with sawdust around, and the sawdust ejected cleanly away from the cutting line rather than up into the air. The trigger starts quickly and the electric blade brake stops the blade fast, with all the power immediately on tap.

The bevel system is a genuine highlight. The base slides out, locks in at detents for 22.5 and 45 degrees, and the smooth lever reaches 56 degrees. The mechanism is adjustable if it ever drifts out of square. There is a standard arbor lock, clear markings on top, and a forward handle that sits well for guiding cuts.
Things to Consider Before Buying
At $129 MSRP for the bare tool, you get a lot of saw for the money, especially given how closely it mirrors DeWalt’s layout and feel. The included blade is fine for simple cross cuts, but spending around ten more dollars on a premium blade pays off noticeably in long rips and overall cut quality. And if your kit is built around 2Ah batteries, plan on adding at least a 4Ah pack before serious work.
Buying Advice
Battery choice defines this saw’s experience. A 4Ah battery is the minimum for simple DIY cross cuts, while 6Ah and 9Ah packs give the best balance of power, runtime, and feel for semi-professional use. The 9Ah delivers the strongest performance for ripping lumber, though the saw feels balanced even with the larger pack.

For anyone already in the Craftsman 20V ecosystem, this saw is an easy recommendation at its bare-tool price, provided you pair it with an appropriately sized battery and consider a blade upgrade.
Conclusion
The Craftsman RP 20V 7-1/4 inch circular saw delivers excellent cutting performance, thoughtful ergonomics, and a refined bevel system at $129 bare. Square out of the box, quick to brake, and comfortable through long work sessions, it earns its place next to more expensive competitors as long as you feed it a 4Ah battery or better.
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View more details for Craftsman RP 20V 7-1/4" Circular Saw