Dynabrade 59044 6" (152mm) Dia. Central Vacuum Dynorbital-Spirit Random Orbital Sander.25 hp, 12000 rpm, 3/32" (2mm) Dia. Orbit, Rear Exhaust Includes low profile, premium urethane weight-mated sanding pad. Black lever identifies 3/32" (2.5 mm) dia. orbit, used for ultra-fine sanding Drop-In Motor available (sold separately) to reduce costly down-time associated with routine maintenance. More Power - True 12,000 RPM air motor Comfort Platform provides additional hand and wrist support, further enhancing operator comfort. Also offers increased protection against cold air exhaust 6" (152mm) Dia. Central Vacuum Dynorbital-Spirit Random Orbital Sander, .25 hp, 12,000 rpm, 3/32" (2mm) Dia. Orbit, Rear Exhaust