I have incredibly expensive end mills that I normally use for hardwood. I'm not a fan of blunting these tools on things like MDF or MDF for $30 a piece - hence the $2 option $0.60. They've survived a few end milling operations at very conservative feeds and speeds (30 ipm, 0.65mm depth per pass) and I can't complain. Don't buy them and expect them to last as long as your "Spektra" coated tools - expect them to be $6.00 per tool at $2.60 each.
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