These bits are extremely dangerous. I've never done a single project that involved just milling a 1/4" bevel on the inside of a white oak frame. The 1/4" straight bit fell off the shank on the first pass. I switched to a straight 1/2" and adjusted the lead to try to finish the project. I finished the first pass but the tip of the blade broke off on the second side. No more. I don't want any more injuries risk they come back I highly recommend no one to use them, although others have had positive experiences the quality control doesn't seem to be consistent.
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