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Files from the edge9/21/2023 ![]() ![]() ![]() Relatedly, lapping is also quite ancient, with wood and beach sand offering a natural pair of lap and lapping compound. Early filing or rasping has prehistoric roots and grew naturally out of the blending of the twin inspirations of cutting with stone cutting tools (such as hand axes) and abrading using natural abrasives, such as well-suited types of stone (for example, sandstone).
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