Quick Change Chuck for fast bit changing Powerful air motor resists stalls and conserves energy Triple idler planetary gearing for smooth operation and extended life Teasing throttle provides precise control Handle exhaust reduces noise and directs air away from work Applications: accessory and air conditioner installation, engine work and auto body repair Free Speed: 2400 rpm Specifications: Chuck Size in.: 3/8 Weight lb.: 2-1/4 Length in.: 7 Average Air Consumption CFM: 3 Air Inlet NPTF in.: 1/4 Free Speed rpm: 2400