Free Speed: 15,000rpm Air Pressure: 90psi Air Consumption: 4cfm Air Inlet: 1/4" NPT Diameter of Sanding Pad: 2" (10,000rpm capacity) FEATURES: • Ergonomic design • Safety trigger prevents accidental starts • Adjustable 4-speed rear regulator and 360 degree turnable exhaust deflector • Used with velcro sanding discs with grit from coarse to fine • Ideal for light sanding, removing rust, and smoothing welds • Rear exhaust SPECIFICATIONS: • Free Speed: 15,000 RPM • Backing Pad: 2" • Air Inlet (PT): 1/4" • Air Hose (ID): 3/8" • Avg. Air Consumption: 4 SCFM • Working Pressure: 90 PSI (6.3 BAR)