I was trying to replace the tiny brass connecting rod shims
that were all messed up on my Neptune, and in between
trying to punch a hole and cut out the .004 shim stock,
I ended up with a wrinkled mess, and could not keep the shims
in place while trying to install them. So, I went searching
for something better. My old feeler gauge is now missing
it’s .004 gauge. Made great little shims though 🙂
It’s tempered, was able to drill a bolt hole and cut
it with no wrinkles, and it stayed in place installing
the rod cap!