Extended Pneumatic R6 Ext Die Grinder,1/4", 1/4 in Air Inlet, 1/4" Collet, 22,000 rpm, 1/2 HP Speed 22,000 RPM, Air Inlet 1/4 in, Safety Features Safety Lock, Power Source Air Powered.
3 7/8 in, Wheel Width 1 1/4 in, Wheel/Tread Material Nylon, Wheel Core Material Glass Filled Nylon, Non-Marking Yes, Number of Wheels 1, Caster Brake Type No Brake Included, Tread Shape Standard.