The Milwaukee 48-03-1005 Angle grinder adapter works for most angle grinders with a 5/8 in. threaded arbor. Screw on adapter for reducing 5/8 in. -11 thread to the smaller M10 x 1.25 thread and arbor size. The adapter is commonly used on wire cups and wheels. Adapter is a common size for most angle grinders. Includes (1) adapter 5/8 in. -11 to M10-1.25.