The newest models of Standard Gage digital electronic bore gages are manufactured in Switzerland by Tesa, the manufacturers of high-end Etalon and Interapid gages.
These digital bore gauges can be zero-set to a master for comparative readings and can also be used for absolute reading by presetting to a master, such as a setting ring. Setting rings are not included and must be purchased separately.
The minimum hold feature will allow you to rock the gauge head through the bore and the display will show the minimum bore size.
The .00005" (1µm) digital indicator makes this both an inch and metric bore gauge with SPC (RS-232) output. The gauge and its accessories come in a sturdy carrying case.
Replacement digital indicator
The manufacturer offers a one-year warranty against defects and malfunction. After that year is up, however, if your digital display acts up you will have no option but to replace the indicator which can be purchased separately. It is highly unlikely that anyone in the US will be able to perform repairs on these digital indicators.
- Digital indicator has .00005" (1µm) resolution
- Maximum permissible error = 5 µm
- Repeatability = 2 µm
- Hysteresis = 2 µm