Homebrew PCBs

In a message dated 12/28/2008 7:12:23 P.M. Central Standard Time,  
matthew@... writes:

I  assume I can use a .0394 for all of them, right?


 
Right.  If you will be using a HSS bit, be prepared to SHARPEN it  every 
couple dozen holes.  If you can get some carbide "PCB Drill-bits"  with the 
industry-standard 1/8" shank, buy at least ten to start with, as you  WILL bust 'em 
very rapidly until you learn techniques to keep the board still  under the 
drill, proper feed-rate, RPM, etc.  
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