Hi Bob Good luck, hope you can find what you need. If not a few ideas: see if
McMaster sells them: https://www.mcmaster.com/shims/ I'm not sure what your
shims are made out of but McMaster sells shim stock or procure some. Early on I
used to make Cox .020 and .049 model cylinder head gaskets out of the bottom of
soda cans. If your shims are aluminium measure, it may be the right size.
Advantage of can is the thickness varies a bit and middle is thicker. I have
used a divider to cut, simple compass where I drilled a dowel and stuck in a
drill bit and sharpened. Rapid Epoxy helps to stabilize poor tools.I have cut
stainless, steel brass aluminium and copper shims like this. You may need to
secure shim to flat object like aluminium, brass, plastic, wood etc. Sometimes
I use double sticky tape, sometimesa turned rod with hole in center and screw
it in place. Small screws or nails is OK too. As far as cutters I have used TIG
Tungsten electrodes, high speed drill bits, cobalt drill bits and carbide.
Since I have a lathe now a days, if it's one off may just turn a piece with OD
and ID taking into consideration the cutter size. Then turn one side the ID and
the other the OD and drill a center hole. Let's say we drill center hole 3/16".
So you take shim stock and punch 3/16" hole in it. Now screw the OD side and
make your cut. Then turn around and cut ID. You're not going to be able to turn
out 20 parts per minute, but it does work if you take your time. Depending how
well the part is cooperating, sometimes cutting 1/4 the way or so and flipping
over keeps the burr down. Good luck. Ron P. BTW, McMaster doesn't have many
sizes, but they sell peel away shims that can make precision shimming a
pleasure: https://www.mcmaster.com/shims/peel-away-layered-ring-shims/
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