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emery wheel

A disc or wheel of artificial stone for grinding by machine. It is composed of emery grit bonded together, of even texture in various grades of fineness, and in various shapes and sizes. Rapidly rotated to grind many different metals the wheel can be run in water to keep it cool. A worn wheel may be cleaned or trued with a diamond truing tool.

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  • Part of Speech: noun
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  • Industry/Domain: Chronometry
  • Category: Clock
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