Diatest dial indicator model O1Z Calibration specs for the .0001" Diatest indicator with .040" range made in Germany by Kafer (Typ O1z). These indicators are used with the Diatest split-style bore gages. The indicator has an 8 mm diameter stem which attaches to the bore gage head. Typically, these indicators have a special operating force which is stamped on the back cover of the gage. For example: 1.5 N When replacing the indicator, this force must be taken into consideration. - Total maximum allowable error: .0004"
- Maximum error for the first revolution (.010"): .0001"
- Repeatability: .0001" at any point within the indicator's range
Source: Käfer Messuhrenfabrik, Oct. 10, 2004 (values are rounded to nearest .0001") Diatest indicators can be purchased directly from the Diatest Company. | 
