- Used for quick zero adjustment of dial bore gages, Holtest, and inside micrometers.
- Actual inside diameter is marked on each ring.
- Size 12in
- Accuracy ±,.00010in
- Outside DIA 17.24in
- Ring Width1.5in
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- Calibration Instruments
- Dimensional Measuring Tools
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- Preventative/Maintenance
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- Recorders/Data Loggers
- Scales and Balances
- Temperature Measurement
- Torque
- Oscilloscopes
- Power Supplies
- Spectrum Analyzers
