Works with 20v DeWalt, 18v Milwaukee and Ryobi batteries. This is made by TTI Milwaukee under the Ryobi brand and is identical internally/functionally to the Milwaukee version.

BARE TOOL NO BATTERIES INCLUDED 10000psi Aftermarket grease cap to keep the tip clean during storage

Essentially NEW I've ran three tubes of Lucas red through it. Works awesome!.

WAS $180 W/tax from the Home Depot 6 months ago. Save $50 bones.