When the shape of your cutting edges differs, and 1 works by using screw threads and one other a twist bit for that pilot, the tactic of altering them remains exactly the same. If this sounds like one thing you could discover useful, make sure to Check out my write-up https://drill-bit-manufacturer60481.blogdomago.com/33186046/the-single-best-strategy-to-use-for-drill-bit-supplier