.4 hp 6 Inch (152 mm) Extension Die Grinder 25,000 RPM, Gearless, Front Exhaust, 1/4 Inch & 6 mm Collets Dynabrade .4 hp (298W) Die Grinder, with extended shafts of 6 Inch (152 mm) for reaching into previously inaccessible areas! These tools allow efficient finishing within deep work-piece channels and difficult passages! Ideal for rapid material removal, deburring, deflashing, surface preparation, cleaning, finishing and polishingModels accept optional carbide burrs, abrasive stones, mounted wheels and molded abrasives. Shaft diameter of only (3/4 Inch) 19 mm fits into narrowest of areas! Governor-controlled motor maintains speed under load. Ergonomic tool housing with comfortable soft-touch gripSafety-lock throttle lever prevents accidental startup. Part # 43510 Sold in qty's of 1 Air pressure 90 (6.2) Country of origin United States Product type Die Grinders RPM 25000