knurling
Diamond-etched metal ridges
Knurling is a pattern of ridges or crosshatched grooves cut into a surface to improve grip.
The technique is common on metal tools, knobs, and fasteners—anywhere fingers need traction: the knurled grip of a barbell, a knurled thumbscrew.
The pattern is typically created on a lathe using a knurling tool that presses the design into the material.
Rotating shaping machine
- turningAct of rotating
- spindleRotating rod for thread
- chuckThrow carelessly or informally
- feedSupply with sustenance
die · roller · workpiece · CNC · tooling · mandrel · carbide · coolant
Carbon-hardened iron alloy
- brassCopper-zinc metal mixture
- aluminumElement thirteen
- copperReddish-brown metallic element
- alloyMetallic combination
hardening · annealing · tempering · machinist · metalworking · threading · finishing · surface
Resistance between touching surfaces
- non-slipPrevents unwanted movement
- tractionAdhesive friction enabling movement
- secureProtected from harm
- handlePart for gripping
ergonomics · purchase · firmness · handhold · anti-slip · gripping · thumbscrew · control
lathe
Rotating shaping machine
feed · die · roller · workpiece · CNC · tooling · mandrel · carbide · coolant · swarf
steel
Carbon-hardened iron alloy
alloy · hardening · annealing · tempering · machinist · metalworking · threading · finishing · surface · deburring
friction
Resistance between touching surfaces
- non-slipPrevents unwanted movement
- tractionAdhesive friction enabling movement
- secureProtected from harm
handle · ergonomics · purchase · firmness · handhold · anti-slip · gripping · thumbscrew · control · tactile
diamond
Crystallized carbon gemstone
- crosshatchIntersecting line pattern
- straightNot curved or crooked
- diagonalSlanting line or path
serrated · checkered · geometric · repeating · raised · grooved · ridged · pyramidal · helical · annular
thumbscrew
Compression torture device
shaft · cylinder · fastener · adjustment · wheel · insert · dial · lever · plunger
knurlingsmooth finish
Surface without texture
polishing · smoothness · burnishing · mirror finish · buffing