Both the hanger bolt and the dowel screw
drivers from Hanger Bolt are designed for use in a reversible power drill.
Hanger Bolt & Stud's Drill 'n Drive 220 is part of a series of machinery designed to insert hanger bolts, dowel screws
and threaded inserts in production quantities.
Together with the Twister dowel screwed
into the Hettinject glued dowel in the side panel, it produces a sturdy joint, according to the company.