Bart Slarty
Plastic
- Joined
- Sep 16, 2021
- Location
- NM
...or other inexpensive objects of calibrated hardness with which I can test my objects of undetermined hardness. I have a set of the ubiquitous set of six in the range of RC 40-65, but I need testing in a range lower than that. Do softer test files exist, or some other similar item?