Question

drill jig bushings are generally made of

Answer 1

Answer__________


Steel

Answer 2

water hardening carbon steel or grey cast iron.

Drill jig bushings are generally used for boring and drilling and boring jigs.

Their use helps in providing a minimization of drill run-off as well as hole expansion.

The diametric precision of holes while drilling is is about 50% more on an average when compared to that of holes which are drilled by conventional techniques.

They are normally used to guide reamers, drills and various other cutting tools in a workpiece.