Check the listing for details. DYNABRADE 52204 Die Grinder,0.4 hp,7Deg Offset,35,000RPM 25H894. Color: Blue, Condition: New. Listed at 603.03 USD. Die Grinder, Duty Heavy Duty, Horsepower 0.4 hp, Collet Size 1/4 in, 6mm, Grinder Orientation 7 Degree Offset, Air Inlet Connection Size 1/4 in, Air Inlet Gender Female, Max. Speed 35,000 RPM, Air Inlet Type NPT, Air Inlet 1/4 in NPT Female, Tool Style Straight, Kit Contents (1) Bare Tool, Includes 1/4 in Collet Insert Mfr. No. 01485, 3mm Collet Insert Mfr. No. 01496, 6mm Collet Insert Mfr. No. 01497, Safety Stop Mechanisms Safety-Lock Throttle Lever, Anti-Kickback Clutch Type None Powered by compressed air, this die grinder is ideal for smoothing rough surfaces on the face of a workpiece. Use in metal fabrication applications with either carbide burs or mounted grinding stones, available separately. Many industrial-duty angle head gears can be greased through a built-in grease fitting. No.