Orbital Sander, Manufacturer suggested retail price. $134.72 Features and Benefits: 10,000 RPM 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 control Specifications: Disc size: 6" Free speed: 10,000 RPM Overall length: 9-1/2"/240mm Net weight: 4-1/4lbs./1.93kg Spindle thread Size: 5/16-24 Air inlet thread NPT: 1/4" Air hose I.D. size: 3/8"/10mm Avg. air consumption: 4 cfm Air pressure: 90-120 PSI Manufacturer: Mountain 1 yr warranty on material and workmanship