1/2 inch 18 Volt Cordless Impact Wrench with Built-in LED Light and Variable Speed; Comes with 18 Volt NiCd Battery and one hour Quick Charger by Chicago Pneumatic Variable Speed: 0-2100 RPM Impact rate: 3000 blows per minute 1/2" bolt capacity Hog ring retainer Comes with one 18 volt NiCd battery and one hour quick charger