Tag Archives: P505

We brought the Ryobi One+ P505 18V Lithium-Ion cordless 5 1/2" circular saw into our shop to see whether its compact profile could earn a spot on our go-to rack. With a stated 4,700 RPM, it promises quick, confident cuts for light framing, trim tweaks, and the kind of “just one more board” jobs that pop up mid-project. The small blade makes it feel nimble in tight spaces, while the One+ platform keeps things familiar—assuming we already have batteries on hand, since this is a tool-only purchase. In this review, we’ll look at how it handles real materials, cutoff accuracy, and whether the convenience outweighs the limitations.