little OT : drilling pcb's

[The Old Crow]

On Fri, 3 Dec 1999, [iso-8859-1] Dr. Jörg Schmitz wrote:

> I etched 12 PCB's the last two days, and now I'm going to drill them.
> The problem is : the drill grows blunt after 20 - 30 holes, and I have
> to take a new one. I use expensive 1 mm HSS - drills, which should
> work, in my opinion.
> 
> Anyone any idea, who to do this work economical ? (I.e. not 12 drills
> for 1 PCB but 1 drill for 12 PCB'S)

  I use #60 and #70 tungsten-carbide bits in my Dremel press.  The bits
cost over US$4.00 each, but they last for a long time.  I usually end up
breaking one before it wears out from use.

  Though lately I've gotten lazy--I'll send CAM files off to a PCB house
for just about anything I make these days.

  --Crow

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