Dynabrade 58455, only opened for pics. Dynabrade 58455 5" (127 mm) Dia. Dynabuffer Random Orbital Polisher .3 hp, 10,000 RPM, Rear Exhaust, 14 mm (.55") Dia. Orbit, 5/16"-24 Female Thread 5" Dia. Dynabuffer Air-Powered Buffing Tool, ideal for use in Two-Step Polishing System. Excellent for buffing out sanding scratches. Dynabuffer moves optional backup pad and optional polishing buff in 14 mm diameter offset orbit. Tool runs at 10,000 RPM free speed, then slows to 5,000 RPM under load. Non-marring housing cover is insulated for operator comfort. Tool accepts optional 56195 Hook-Face backup pad, and optional 97166 Hanger Bracket. Polishing buffs are sold separately. Tool includes Safety-Lock Throttle Lever.