Forstner bits are available to 1/8th inch, but are expensive. The reason
not to use them is that the cutting edge would dull in no time due to the
copper clad board. A real waste of a good bit.
Mike K4ELV
----- Original Message -----
From: "Jeremiah McCarthy" <[EMAIL PROTECTED]>
To: <elecraft@mailman.qth.net>
Sent: Friday, July 27, 2007 10:56 AM
Subject: [Elecraft] Wood bits
On this side of the lake these bits are known as "brad-points"...There is
another similar type known as "Forstner", but they are much more expensive
and I am not sure they are available in the smaller diameters...
Jerry, wa2dkg
Not sure if this is what you are looking for, but, I've tried using wood
drills (the ones with the point which only cut on the outside edge, good
for thin sheet metal, too) to make copper lands on a plain board. I think
they are also known as torpedo drills. I've seen kits made up of lots of
little squares or circles of pcb material that you stick onto your main
copper clad board. That's a little more messy, but works. I prefer the
drill method, it also starts a hole for your component wire.<<
David
G3UNA<<
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