Milwaukee® Side Handle is designed for 4 1/2", 5", 6", 4 1/2" and 5" angle grinders with slide switch, 4 1/2", 6" angle grinders with paddle switch with lock-off, 4 1/2" angle grinder, 4 1/2", 6", 5" and 6" rat-tail angle grinders, 4 1/2", 5", 6" rat-tail angle grinders with lock and 4 1/2" angle grinders with paddle switch.