Milwaukee® 10 mm X 26 mm X 8 mm Ball Bearing is designed for electric drills, grinders, 4 3/4" deep cut band saws, two speed deep cut band saws, reversing drain cleaners, sander-grinder, 4 3/4" deep cut band saws, band file, band saw, random orbit sander, cordless drill/driver, electric drill/driver, drill press, 1/4"/3/8"/ 5/16" piston drills, 18 ga swivel head shear, 0 - 500 RPM reversing drain cleaners, drain cleaner, adjustable torque screwdriver, screwdrivers, 5" D.I sander-grinder, 5/16" power unit, 12 V 3/8" cordless drill, 3/8" speed control drill and 3/8" reversing speed control drill.