Description
- Black granite surface plate, Grade B
- Accuracy is ±0001″
- 6″ x 8″ x 2″
- Meets or exceeds Federal Specifications GGG-P-463C
- Harder than steel and does not nick or burr
Black granite surface plate used as a horizontal reference plane for tooling setup, precision inspection and layout.
These surface plates are checked with an auto-collimator for overall accuracy. All points on the surface are between two parallel planes ±0001″ apart.
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