Emery Stone, Silicon Carbide # 112. Dimensions 100 x 45 x 16mm. Silicon carbide stones are very fast cutting and while a thin clear oil is usually sufficient, cutting my be tempered by soaking in a pan of hot vaseline. Should the stone become clogged it may be cleaned with gasoline, paraffin or ammonia
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2012 Watch Parts, Tools and Supplies
Catalog, Page: 187