o-37 early K date tool

[lugerholsterrepair]

Mike, These tools are relatively rare and consequently expensive. I have seen my share..I collect tools... the more rare the better but I would pass on this one if it were on a table for 20 bucks.
I have been fooled before on rare tools..You have to keep learning but it's best to keep your money in your pocket on this one.
It's just not right.
If you do come accross an original it will not be cheap...

I don't know what your measuring with but the tolerance is very thin. Anything less than 1/10 is good..say 95-97 thousands. Not much over..115-125 thousands and that's too much!

My recollections previously were wrong. The type of tool you have or at least the surface texture or something like it may have been made in 1957-58 at the Veb Ernst Thalmann Werk, formally Sauer & Haenel. Pg 292 Bender's Luger Holsters & Accessories.
If it is not one of these I would bet it may be East German of the same vintage.

Jerry Burney