Listing ID #5508780
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Contact Suppliergranite surface plate (as per is 7327 – 2003)
ntmt granite surface plates are as a precision datum base for
inspection, tool marking, gauging, spotting, marking and layout operations.
material: granite surface plates are made from selected granites with uniform distribution of light and dark constituents. It has a fine grind, non porous texture and grind size measures less than 1 mm. It has a constant hardness throughout 6 to 6.5 moss scale and 3 times harder than cast iron surface plate. It has very lowest thermal co-efficient of expansion, 100% rust proof and acid resistance, non electric-conductive and easy to clean. Maintenance costs are practically nil. If may chip but cannot develop a burr.