Homebrew PCBs

If you have access to compressed air, a very good solution is to use an "air
micro die grinder" from, for example, Harbor Freight:

http://www.harborfreight.com/1-8-eighth-inch-air-micro-die-grinder-47869.htm
l

 

It runs at 56,000 RPM which is great for PCB drilling, it comes with a
collet for 1/8" which is perfect for the standard carbide bits.  The price
is right, $19 to $25 depending on if it is on sale or not.  I bought mine
about 20 years ago but they keep selling it or similar models.

Bertho



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