In article ,
Bill Woods wrote:
Do drill bits for use in ordinary "home use" drills get blunt with
the result that they work less well?

Yes - and it's easily seen if you have good eyesight or use a magnifying
glass, the cutting edge gets rounded off. Compare with a new one.

--
*Young at heart -- slightly older in other places

Dave Plowman London SW
To e-mail, change noise into sound.