1. A series of regular ridges or rectangles on a metal surface to help prevent slipping. Used on triggers, hammers, bolt handles, etc. 2. Sometimes used in referring to cartridge case or bullet cannelures.
KNURL, KNURLING
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1. A series of regular ridges or rectangles on a metal surface to help prevent slipping. Used on triggers, hammers, bolt handles, etc. 2. Sometimes used in referring to cartridge case or bullet cannelures.