Chicago Pneumatic 870 6" General Duty Dual Action Air Sander 10,000 RPM. Rotary and orbital motion for rapid removal as well as fine finishing. Speed regulator to match speed to the job. Lock off throttle to prevent accidental start ups. Insulated grip provides comfort to operator. Applications: blending and smoothing filler, feather edging and pre-paint preparation. Specifications: Paper size in.: 6, Average Air Consumption CFM: 5, Air Inlet NPTF in.: 1/4, Free Speed rpm: 10000, Motor hp: 1/2.