I've turned down a few SS and Blued Savage bolt handles in order to thread and install a custom bolt knob and they machined OK. I set up a matte finish knob and went to machine it and HSS would not come close to touching it! It almost seems like its case hardened? I stuck my huge 3/4" carbide tipped turning tool and was able to cut through the surface. After that, I was able to cut with HSS fine. I can't even break the surface with a file!
What kind of metal are they made out of? I find this problem with matte finish handles. Anyone have similar experiences?
What kind of metal are they made out of? I find this problem with matte finish handles. Anyone have similar experiences?