Re: gEDA-user: PCB fab supplies -- drills

["Gary P. Fiber" <gfiber@xxxxxxxxxxxxx>]

I had a friend who was a dentist and he gave me about 50 or 60 old 
dental burrs
after he sterilized them a number of years ago. They work fine in the Dremel
tool I use to drill out my boards. If I am concerned about the size I have a
0-1" micrometer to measure them.

Gary K8IZ


> > What is a good source for the small sizes like .025 to .070 inch?
>
> Woodcraft has HSS twist bits in wire sizes 60 to 80 (40-13 mils).
> http://www.woodcraft.com/family.aspx?FamilyID=784
>
> Grizzly has reground CNC bits in random sizes down to 13 mil.
> http://www.grizzly.com/products/G7950
>
> The carbides are easier to use, but more fragile.
>
>
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Gary P. Fiber K8IZ
GROL PG-19-6691
Washington State Resident


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