Sioux® FORCE® Die Grinder, Medium Duty, Tool/Kit: Bare Tool, 1/4 in Collet, 22000 rpm, 1/2 hp, 16 cfm, 90 psi Air, 1/4 in NPT in NPT Air Inlet, Rear Exhaust Location, Lock-Off Lever Throttle, 3/8 in Minimum Hose Size, Aluminum Housing, Straight, 6-1/2 in L