Mini Air Polisher Product Type Air Polisher Included Pad Sizes 3 in Maximum Disc Diameter 3 in Duty Light Grip Type Pistol Maximum Motor Speed 2 100 RPM Air Consumption 20 cfm Required Pressure 90 psi Air Inlet Size 1/4 in Air Inlet Type NPT Minimum Hose Size 3/8 in Spindle Thread Size 5/16 in - 24 Exhaust Location Rear Tool Length 5 1/4 in Tool Weight 1.7 lb