Engine Turning, or Jewelling

  Jeweled extractor claw.

Jeweled bolt

   Jeweled Rifle Bolt

Jeweled - An engine-turned treatment on a steel part done both for a finished look and to hold a trace of oil on the surface. An abrasive-impregnated rubber bit is used to describe a circular pattern on the surface of the steel, then moved just a little less than distance of the diameter of the bit, touched to the surface again, and the process repeated until the steel surface is covered with small regular rows of circular swirls.

Below: engine-turned surfaces of a Bugatti engine.

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Hallowell & Co., Inc. PO Box 1445. Livingston, Montana  59047   USA   Tel: 406 222-4770    Fax: 406 222-4792     Email: morris@hallowellco.com

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