knurl

or nurl

[ nurl ]

noun

1. a small ridge or bead, especially one of a series, as on a button for decoration or on the edge of a thumbscrew to assist in obtaining a firm grip.
2. a knur.

verb (used with object)

1. to make knurls or ridges on.

knurl

/ nɜːl /

verb

1. to impress with a series of fine ridges or serrations

noun

1. a small ridge, esp one of a series providing a rough surface that can be gripped

Word History and Origins

Origin of knurl¹

1600–10; earlier knurle (noun). See knur, -le

Word History and Origins

Origin of knurl¹

C17: probably from knur

Example Sentences

Interior indulgence comes courtesy of Aston’s talented craftspeople, who create wood and composite marquetry, knurl metal knobs, and handily “brogue” leather—piercing it in a constellation pattern, as on a wingtip shoe, to allow subtle sub-dermal contrasting colors to come through.

From The Verge

If the knurling is to be carried along the work to a greater length than the thickness of the knurl wheels, the lathe slide rest is slowly traversed the same as for a cutting tool.

From Project Gutenberg

The knurling is done by two knurls A and B having teeth or ridges which incline to the right on one knurl and to the left on the opposite knurl, as shown by the end view.

From Project Gutenberg

To prevent forming a double set of projections, feed the knurl in with considerable pressure at the start, then partially relieve the pressure before engaging the power feed.

From Project Gutenberg

These are mounted in a revolving holder which not only serves to locate the required set of knurls in the working position, but enables each knurl to bear against the surface with equal pressure.

From Project Gutenberg

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