Mitutoyo Black Granite Surface Plate 12" x 12"

This Mitutoyo black granite surface plate is available in 3 grades: AA Laboratory Grade, A Inspection Grade, or B Shop Grade. Natural granite seasoned for thousands of years is free from deterioration or dimensional change over time. Granite surface plates are twice as hard as cast iron and have minimal changes in dimension due to temperature changes. Free from burrs or protrusions because of fine grain structure and insignificant stickiness; this ensures a high degree of flatness over a long service life and causes no damage to other parts or instruments. Granite surface plates provide trouble-free operation for use with magnetic materials, and have a long life as well as being rust-free, resulting in low maintenance costs.

NOTE: Due to their size and weight, granite surface plates have a freight charge. Please contact us for a quote that includes freight.

• Granite Surface Plate Size 12" x 12"
• Grade
  • AA Laboratory Grade - 50µin Accuracy, 3" High, 50 lbs.
  • A Inspection Grade - 100µin Accuracy, 3" High, 50 lbs.
  • B Shop Grade - 200µin Accuracy, 3" High, 50 lbs.
• NIST Certificate of Accuracy Mitutoyo granite surface plates meet or exceed federal specification GGG-P-463c. Each surface plate is shipped with a Certificate of Accuracy that guarantees its accuracy and verifies its traceability to NIST.
• Load 100 lbs. load / square foot, no ledge.
• Country of Origin USA

Steel granite surface plate stands are available here.

Mitutoyo part # 517-702-10, 517-802-10, 517-902-10.

NOTE: This item is not returnable.