Milwaukee chuck key tightens the jaws of the 1/2 In. capacity chuck 48-66-1360, 48-66-1370, and 48-66-1381. Key holder 48-66-4040 should be used to attach this chuck key to the cord set.
For use with chucks 48-66-1360, 48-66-1370 and 48-66-1381 Use with key holder 48-66-4040
