wrote:
http://en.wikipedia.org/wiki/Automatic_center_punch

http://www.amazon.com/General-Tools-.../dp/B00004T7RJ
Wow. I never heard of these things. I'll get one and give it a try.

This tool is usually in a car thief's toolbox. A quick almost silent
way to shatter a side window of a prospective car. Also something
you don't want a cop to see you have. Many cops think tools like this
are only used by car thieves.

I keep the small one in my work shirt
pocket next to the little screwdrivers,
markers, thermometer, ball point pen,
etc. I had a service call at The U.S.
Attorney's office in downtown a while
back and had to explain to the security
guards that I had all manner of sharp
metallic objects on my person and in my
tool case. It was no problem because I
was there to make legal use of all my
sharp implements, including my rather
small brain. *snicker*

[8~{} Uncle Monster