Technical Data:
Series: 521
Product: Calibration Tester
Micrometer head graduation: 0.00001 in
Micrometer head range: 0 - 0.2 in
Accuracy: +/-0.00003 in
Hysteresis: 0.00003 in
Clamping capacity: Dia.4 mm - Dia.10 mm / 0.157 in - 0.394 in diameter

Application:
Accuracy tester for 0.0005 in, 0.0001 in and 0.01 mm graduation dial indicators and dial test indicators.
Can also be used to adjust the sensitivity of electronic micrometers.
Universal bracket accepts dial indicators, dial test indicators or electronic gages without an additional accessory.