On Tue, 21 Oct 2003 18:45:46 -0700, "Harold & Susan Vordos" wrote:
Both of them will be more difficult to machine than mild steel, but you're
likely to notice little difference between them until you have a little
experience machining. Because water hardening is only carbon steel, it
tends to be more economical than oil hardening, which is an alloy tool
steel.

Hmmm, W2 is alloyed with vanadium. O2 is alloyed with manganese.
Both are alloy steels, though very simple ones.

Gary