Quote Originally Posted by metric_taper View Post
I would have never thought of using rebar as tool steel. I know it's "mystery" metal, at least when purchased from the local home supply. I will look at it as high carbon steel in the future.

I made some sand blast nozzles the other night from 1/2" oil hardening drill rod, them I did not temper.
Will you be showing us the nozzles? I have made holdfasts from rebar, but they lose their spring rapidly, and have to be bent again. (I’ve made better since.) I take it, Frank, that you do not intend your punches as drifts, to drive right through material?