They fill in gaps that were left by the other sets.

Except the "E" drill, anyway.

Absolutely... But it doesn't explain why they are called out by numbers and
letters. It seems like someone created the idea and for some reason, a
bunch of people got together and supported the idea even though *someone*
had to be logical enough to see that a decimal based system would be easier
to track, understand, etc.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R