Precise Black Granite Surface Plate, 2-Ledge Laboratory Grade "AA", 12" x 18" - PSP-131
The hardness and stability allow accuracies within millionths of an inch. Along with the high accuracies, granite is rust-proof, non-magnetic, abrasive resistant, non wedging, wrap-resistant and easily cleaned. The granite used for surface plates has an excellent distribution of hard quartz which provides a smooth, long-wearing working surface.
Granite surface plates meet or exceed Federal Specifications GGG-P463. Final inspection and calibration of every surface plate is accomplished by use of the Auto-Collimeter
Repeatability:
- Grade "B" Toolroom ± 100 Millionths
- Grade "A" Inspection ± 50 Millionths
* NOTE: Specify when ordering "Granite Stands", "O" Ledge or 2-Ledge. *
Precision Surface Plate Cleaner
An exclusive formulation that is extremely effective for the cleaning and care of Granite Surface Plates. It is also easy to ship via UPS or CommonCarriers.MSDS sheets are shipped with each order. Made in USA, A safe and effective formula originally invented over 10 years ago to specifications developed by a leading metrologist and marine biologist, our "Precision Surface PlateCleaner" has been one of the most widely used for over 10 years. Works quickly and effectively, leaves no residue on the granite.
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