Stuart,
I haven't had to try it out. He seemed to know his stuff and I guess if it works, it must be hardened steel. I haved removed bearing races on an axle using a similar technique. They shattered like glass.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!