Mahr PRN-10 Surface Finish Standard

Description

Mahr PRN-10 Surface Finish Standard. I used this to calibrate my Mahr Perthometer Profilometer, may be useful on other brands. Item is in excellent condition. This item is serialized, and was recently calibrated by Mahr (08/05/2020), container has Mahr calibration sticker showing valid until 08/05/2025. I am the original owner, and it was purchased from an authorized Mahr distributor. Condition is "Used". Shipped with USPS First Class.