Milwaukee® Paddle Linkage is designed for 6146-30 4 1/2" compact angle grinder, 6117-30, 6117-31 5" hp angle grinders with paddle switch, 6146-31, 6147-31, 6147-30 4 1/2" compact angle grinder with paddle switch and 6161-30, 6161-31 6" hp angle grinders with paddle switch.