Air Die Grinder, 25,000 RPMs Provides The Speed To Remove Material Quickly, Great For High Speed Grinding, Porting, Smoothing, General Polishing & Deburring, Patented Ergonomic Body With Thermal Isolator For Continuous Use, Lightweight Engineered Composite Housing Reduces Fatigue, Ideal For Use On A Variety Of Materials Including: Wood, Metal, Plastic, Ceramic & Cast Iron, Standard 1/4" Collet For All Types Of Accessories, Exhaust Diffuser For Quiet Operation, Average Air Consumption 6.2 SCFM, 1/4" Air Inlet, Minimum Hose Size 3/8", 1 Year Warranty.