A fella needs a couple woodruff keys cut on a shaft for his combine. Its NOT an option to break my only import Enco grade cutter on Saturday afternoon.
I have broken many cutters in the past and I wonder if I need a better technique. My problem has allways been with the cutter catching at nearly full depth and then snapping right off. I do this in the old manual bridgeport, lock the gibs on the X axis and feed extremely slow on the Y by hand. Low RPM, maybe 200, don't remember for sure. Squirt bottle oil coolant/lubricant.
Should I maybe run the RPMs up? Do somethig other than just plunge in? Not buy that el cheapo import tooling? (won't help for today)