Quote:
|
I was thinking of HSS, my bad. Yeah, carbide doesn't get soft.
|
Close, but no cigar. HSS steel bits will get soft when at Red heat, but will harden again as they cool...they are made from Air Hardening Steel. Tool Steel, on the other hand, becomes soft when heated and stays soft when cool (annealed). Luckily, Tool steel cutters have become mostly obsolete and are not encountered frequently anymore. I did run into some in a Middle School woodshop several years ago with the wood lathes. It was a challenge to sharpen them without getting them too hot and wrecking them.