Milwaukee® Pan Tapt Torx measuring #4-20 X 1/2" is designed for light, drain cleaner, hole shooter, 12 V 3/8" compact series driver-drill, 14.4 V 1/2" compact driver-drill, cordless 18 V work light, router, cordless 7.2 V 3/8" VS hole-shooter, cordless 7.2 V screw shooter, cordless M12 compact band saw, cordless 18 V LED work light, compact driver drill, 12 V 3/8" compact driver-drill, 14.4 V 1/2" compact driver-drill, cordless work light and cordless drain cleaner.