"Bob La Londe" wrote in message ...
....
I've got a piece of 3/4" steel plate laying out in front of the shop
that I have wanted to break down for various projects for a while now. I
hope this will cut it without to much slag.

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I've encountered a tool-dulling hard layer at the CNC plasma cut in hot
rolled steel. Fortunately the tool that dulled was an easily resharpened HSS
lathe bit instead of an endmill or bandsaw blade.