A great interchangeable handle for round shank tools and some flat tang tools  (a question of testing to fit).  This long handle is approximately 17.5" in length.  One end has an 1/2" opening while the other end has a 5/8" opening.

This is of heavy construction with a durable hard plastic with nylon strands, covering a steel foundation.

The tools are secured with two Allen head set screws.  The standard Oneway blue handle Allen wrench  works as does the Allen wrench that is included with each handle.