Will wrote:


That is great information. What are the specific characteristics I should
call out? 1/4 to 1/2 inch diameters would be a very typical range for us.


Dig up the recommended cutting speed in surface feet per minute, for
the materials you are cutting, and the drill materials you are using,
and start from there.

Too fast cooks drills, too slow cost you time.

Some materials are just nicer to work with, too, and are less picky
about speeds and feeds. 304 is not one of those, for example.

Cheers
Trevor Jones