In article Zjtaf.3591$y23.393@trndny08,
says...
Drilling Mild Steel... Anyone have online sources for such a chart? I have
one on my site, but someone actually convinced my customer he needs a
tremendous amount of HP for a simple hole. He asked for outside sources of
info backing up my quote so... I need a chart from someone else.


Machinery's Handbook has formulas, in the section titled
"Machining Power," that will allow you to build a new table
(in Excel?), or to verify the figures in your current
table.

Ned Simmons