Allows to attach drill chuck to the hammer drill, so that also twist drills with a cylindrical shank can be used.

The adapter is compatible with drill chucks with a 1/2"-20 UNF threaded mount.

Security screw is included.

We recommend using our Drill Bits with this drill chucks.

Notes:
Inserting the adapters creates a plug-in connection, which also reduces a runout accuracy of a drill chuck. It is therefore mainly suitable for normal drilling work. For precision work, we recommend not using threaded or plug-in connections. Here, we recommend a drill chuck with a taper mount and a machine with a Morse taper mount.