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Message: <blockquote data-quote="AllOut" data-source="post: 1915146" data-attributes="member: 12099">That's a .462 dia drill, they make a few different sizes.Mitsubishi makes them and so does KennaMetal. The Mitsubishi are a lot better, KennaMetal copied them after we started using the Mitsu to make us buy them cause we are under contract. They didn't make them at the time so we could buy from someone else but now that they (KennaMetal) are making them we are obligated.You need to run the start drills with them though or predrill a smaller hole and milled it out the exact size of the drill.</blockquote>