knurling

/ˈnɜrlɪŋ/
noun
  1. A pattern of small ridges or bumps on a surface, usually on metal or plastic, made to provide a better grip or for decoration.
    • He ran his fingers over the knurling on the metal knob, feeling the rough texture.
    • The knurling on the handle of the screwdriver helps you turn it without slipping.
    • The manufacturer added knurling to the pen's grip so it would be easier to hold.
  2. The process or act of creating a pattern of ridges or bumps on a surface.
    • The machinist spent the afternoon doing the knurling on the new tool handles.
    • The workshop offers knurling services for custom bicycle parts.
    • Knurling is often done with a special tool that presses the pattern into the metal.
verb
  1. To press a pattern of small ridges or bumps onto a surface, usually to improve grip or for decoration.
    • The technician will knurl the metal bar to make it easier to hold.
    • They decided to knurl the aluminum tube for a more professional look.
    • You can knurl the handle of a tool using a lathe and a special knurling wheel.
What does "knurling" mean? | whatsthatwordmean | whatsthatwordmean