Features and Benefits:?Quickly and easily swap annular cutters and 3/4 in. Weldon to 1/2 in. chuck adapter?Compatible with M18 FUEL? 1-1/2 in. magnetic drill and all competitive 3/4 in. Weldon chucks?Accepts 5/64 in. to 1/2 in. drill bits?Chuck key includedThe Milwaukee 3/4 in. Weldon to 1/2 in. chuck adapter with chuck key adds to the versatility of the M18 FUEL? 1-1/2 in. magnetic drill. This durable, steel-constructed chuck adapter allows users to quickly and easily switch from 3/4 in. Weldon shank annular cutters to twist drill bits with little down time on the jobsite.