Precise 12″ X 9″ X 2″ Granite Surface Plate Grade B 0 Ledge – 4401-1599

• Surface plates are checked by an auto-collimator for overall accuracy assurance.
• Accuracy is 0001″.
• Granite surface plates meet or exceed Federal Specifications GGG-P-463C.
• Includes a certificate of inspection.
• Note that these are not NIST traceable.
• Harder than steel and does not nick or burr.

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