Best Angle Grinders · Ryobi · Updated June 2026

Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only): specs and price (2026)

Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) has a US price of $59 (Approximate current retail; discontinued, often found ~$29.99 (factory blemished) at Direct Tools Outlet). Below is its full, sourced spec sheet — every value links to the source and the date we captured it.

Specifications

Price (US)$59 Approximate current retail; discontinued, often found ~$29.99 (factory blemished) at Direct Tools Outlet
BrandRyobi
Released
disc size in4.5 in
power sourcecordless
amps or voltage18 V
max rpm6500
brushlessNo
switch typetrigger
no volt release
weight lb4.8

Source: ryobitools.com (verified 2026-06-20) · corroborated by amazon.com. 4.5 in disc, 18V, 6,500 RPM, 4.8 lbs confirmed across Ryobi page and Amazon. Switch corrected paddle->trigger: documented as an underside trigger switch with top lock-off (Vehicle Service Pros / retailer specs), not a paddle. Brushed motor (brushless false). Listed discontinued on Ryobi.com.

Frequently asked questions

How much does the Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) cost?

The Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) has a US price of $59 (Approximate current retail; discontinued, often found ~$29.99 (factory blemished) at Direct Tools Outlet), as of 2026-06-20.

What are the Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only)'s key specs?

Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) (Ryobi): disc size in 4.5 in, power source cordless, amps or voltage 18 V, max rpm 6500, brushless No. Full sourced spec sheet verified 2026-06-20.

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