Higher degree of accuracy when used at temperature of 68°F (20°C)
Individual serial numbers on each block, regardless of grade.
A complete certificate of calibration traceable to the N.I.S.T. showing the deviation of each block.
All sets are supplied in deluxe fitted wood case.
Mirror polished surfaces provide superior wringing characteristics.
Meets or exceeds Federal GGG-G-15C
Tungsten carbide resists high corrosion, making it ideal for continuous handling, also with low coefficient of expansion to resist temperature changes or "hot hands" from the gage block users.
With a surface finish of less than .2 millionths (.005 microns) is ensured and gives maximum wringability which is appreciated by users of steel and chromium carbide gages.
The surface finish process removes all peaks, leaving mirror finish surface resistant to wear, ensuring long life within the original accuracy tolerance and retained wringability
Edges of gaging faces are reinforced for a smooth radius