Dynabrade 52258 Straight-Line Die Grinder, 20000 RPM, Front Exhaust, 1/4-Inch Collet Includes 1/4-Inch Collet Insert (50013), fits optional 1/8-Inch (50065), 3/8-Inch (50014), 6 mm (50016), 8 mm (50039) Gearless for reduced maintenance and downtime Great for general metalworking applications Quality, industrial-rated Made in the USA