On Thursday, June 4, 2015 at 8:00:15 PM UTC-4, Lloyd E. Sponenburgh wrote:

I've characterized a few on the lathe, and etched the measurements onto
them with a vibratory marker. Once I measure all of them, I'll just have
new ones ground to spec. We have a really good carbide grinding shop up
the road about 25 miles. And it IS a router, so a couple of 'tenths'
doesn't make much difference, especially in the springy foamboard most of
his jobs call for.

Lloyd

Some times it is cheaper to let a shop that specializes do the work. So you might see what the really good carbide gringing shop would charge to characterise them. Getting a price will not cost anything and it might be the way to go.

Dan