This is a simple and convenient machine for rough and fine polishing of metallurgical specimen. This specimen after mounting and after being polished by hand on emery paper is polished on this machine. The specimen is held against a rotating flat disc, on which a polishing cloth, impregnated with suitable polishing media such as silicon carbide powder, alumina or diamond powder, is stretched. Disc polishing gives the specimen a scratch free mirror like finish.
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