Off topic: Very small holes in steel

From: Terry T. Wohlers (
Date: Wed Feb 03 1999 - 03:23:17 EET


I'm working with a company that wants to produce very small holes in steel.
 What would you use to produce 5 to 20 HGA diameter holes in 0.25 inch (6.5
mm) thick tool steel. What is 5 to 20 HGA you ask? Well, to most
Americans, it's 0.005 to 0.020 inch, .... and to the rest of the world,
it's 0.125 to 0.5 mm. That's small, but I am under the impression that
lasers are available that can produce holes that small?


Terry Wohlers
Wohlers Associates, Inc.
OakRidge Business Park
1511 River Oak Drive
Fort Collins, Colorado 80525 USA
Fax 970-225-2027

P.S. I found the GA discussion creative and humorous! Thanks for
lightening the day.

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