05-04-2017, 07:59 AM
I made up an excel spreadsheet that has all the wire gauge, letter, fractional and metric drills up to 1" / 25mm and the recommended RPM for a variety of materials. I printed it out, laminated it and it hangs next to the drill press. I'll see if I can dig it up and I'll post it here.
Hunting American dentists since 2015.