PCB Micro drills and micro end mills"
"azotic" wrote in message
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PCB drills are generaly C2 carbide, not recomended for drilling steel.
If your gonna buy some on ebay only purchase new ones, used ones
will usually need to be resharpened.
Best Regards
Tom.
the broken drills are almost free, and they provide a great source of
carbide for engravers, etc
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