Special step block for thickness and linearity calibration.
Inch
The 10-step inch version is made to PH Tool drawing no. 10142 and goes from 0.100 to 1.000 in 0.100 increments. Face measures 0.750 x 0.750.
Fitted wooden storage case optional...see...
Available In: Inch, Metric 10A, Metric 10B