Knurling is a mechanical process for rolling patterns on the handles of metal products or other work surfaces, mainly for anti-slip purposes.
The method of using a knurling knife to roll the surface of the workpiece into a straight or net pattern is called knurling. After the workpiece is knurled, it can increase the aesthetics and is easy to hold. It is often used for the outer surface processing of the micropipe, winch wrench and other parts.