The 1/4″ hex shank can be used with power drills and quick-change chucks. The Comoware countersink drill bit set consists of 7 bits that can work on wood chamfering, reaming, openings ...

Obviously, sticking in a rotating metal bit won ... power drill? This four-piece set includes three different wheels for various levels of buffing and polishing, as well as a hex shank mandrel ...