Specifications Sanding Pad : 6” (152 Mm) Free Speed : 10.000 Rpm Air Inlet (Pt) : 1/4” Air Hose (Id) : 3/8” Avg. Air Consumption : 4 Cfm Working Preassure : 90 Psi (6.3 Bar) Weight 0.95 Kgs (2.10 Lbs)