Is there a drill bit made of the material of grinding wheel of orbital grinder, which breaks down slowly as it drills, or maybe it can be made of like diamond -studded metal file, so that the drill grinds as it drills, instead of cutting through the metal? Thank you for your interest.
What you have here is called an XY Problem. You’re attempting to solve X. If you define and describe the actual root problem Y, people will be able to better provide solutions.