Mitutoyo 517-803 Imperial Surface Plate, 4 in H x 18 in W x 12 in D Surface, A Inspection Grade, Black

• Natural granite seasoned for thousands of years is free from deterioration or dimensional change over time
• Granite surface plate has many advantages over cast iron surface plates: Twice as hard as cast iron
• Minimal changes in dimension due to temperature changes
• Free from wringing, so there is no interruption of work
• Free from burrs or protrusions because of the 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
• Trouble-free operation for use with magnetic materials
• Long life and rust-free, resulting in low maintenance costs
• MITUTOYO Granite Surface Plates meet or exceed Federal Specification GGG-P463c
• Each Surface Plate is shipped with a Certificate of Accuracy which guarantees its accuracy and verifies its traceability to the National Institute of Standards and Technology
• All plates from 48”x108” and larger are Machine Base Gray Granite
• Smaller plates are Black Granite
• Surface Plates, to size of specifications other than standard, available on special order
• Surface Plates, with the bolt screws, available on special order
• All MITUTOYO Surface Plates shipped F.O.B. Escondido, California.

Mitutoyo 517-803 Length 12.0000 in | Width 18.0000 in | Thickness 4.0000 in | Grade A Inspection Grade | Material Granite | Inspection Surface Plate