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Diamond On Glass LapPlate 3 3/16" x 10" +/- 5μ (microns)

SHLP10

IN Stock for immediate shipping

Diamond On Glass LapPlate 3 3/16" x 10"

Why is the DGLP so expensive?

Shapton's diamond glass lapping plate (DGLP) is a measuring tool. The plate is created by imbedding diamonds in the surface of a solid plate of high precision float glass. The surface of the plate is calibrated to a spec that exceeds plus or minus 5 µ. A micron is the thousands of a millimeter. The total deviation in the surface of the lapping plate falls in the range between zero and 10 µ. This is measured with special equipment in a clean environment in the Shapton factory in Japan. This calibration is performed before the diamonds are attached to the surface of the plate. Once the diamonds are attached to the surface of the plate, the surface of the plate can no longer be measured with equipment available today. However, a stone that has been flattened with the plate can be measured. At the factory, we regularly measure stones that have been flattened with the DGLP to plus or minus 1 or 2 µ. After considering the level of technology used to create the DGLP, the price is much easier to understand.