The Milwaukee SDS and chuck adapter kit increases the usefulness of your rotary hammer to allow you to use straight shank twist bits in a drill only mode. The kit includes a 1/2 in all metal three-jawed chuck, an SDS to 1/2-20 thread adapter, a chuck screw and a chuck key.

Milwaukee® SDS/Chuck Adapter Kit, For Use With: SDS-Max® Hammers, Steel, Silver, 2.3 in L x 3.06 in W x 7.25 in H x 2.87 in D Dimensions