ChrisAtUpw@....... wrote:
>       You can get 1/8" tungsten carbide drills (ordinary type) from 
> www.smallparts.com for $4.20 each. The one that I have is about 2 1/4" 
> long and half of that is usable shank.
>       I buy the printed circuit board tungsten carbide drills with an 
> 1/8" shank for a bit under $4.50. I have searched several US websites 
> for these, but the only one that I found was digikey and they wanted 
> $7.55 each! The overall length is 1.5" and the shank is 0.9" long.
>       You can also buy carbide spotting drills, center drills and 
> various router and milling bits, but these are all likely to be more 
> expensive.

TIG electrodes might be worth a go too.
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