[Michael C Henry]

We had a tool suppliersales person came in and demoed drill bits and saw blades. Their claim to fame was cryo,d stuff. The bits were tuff.hard but not brittle.Carbide is hard it will cut hard stuff but it will chip and you're done. Cobalt is used at a slow speed ,you get it hot and you'll lose your edge.These bits were good. They said it was a spin off of the space stuff. Turns out the stuff that came back down after being in outer space was tuffer and harder than before it went up. We are now locked in with Karr produsts as our supplier.The supplier I was talking about didn't come back.