Features and Benefits: DAQ-dual action quiet performance Used for feather edging metal preparation and finish work on body filler Built-in silencer and motor insulation provide quiet operation Eliminates time consuming hand sanding Balanced ball bearing construction for vibration-free Built-in regulator for positive speed controlSpecifications: Disc size: 6"" Spindle thread size: 5/16"" x 24 Free speed: 9 000 RPM Air hose I, D, size: 3/8"" Avg, air consumption: 5 cfm Net weight: 4-1/4 lbs, Overall length: 9-1/2"" Air inlet thread: 1/4"" NPT Noise level: 85, 1dBA @ 90 PSI SKU: DOBA9761