Knurling

Knurling is typically used to provide a uniform sure grip on an otherwise smooth surface. Knurled finishes for handles and grips are essential characteristics for tooling and components in a variety of industries, but especially important for medical tooling and devices surgical, dental, oil & gas, aerospace and other industries. We produce some of the finest knurled finishes in industry. Rolled knurls are superior in finish, form, and dimensional consistency to knurls formed by cutting or bump rolling on lathes and screw machines. Also, knurled components are used for metal parts that are molded into plastic or pressed into other metal components. The uniformly rough surface prevents slippage under stress.

The same equipment used for thread rolling is used for high quality roll knurling. Typically, we help customers design their components to accommodate rolled knurls, and then we form the knurl with a value-added process.

Process: In-feed Roll Knurling
Knurl Types: Circular and Diametral Pitch
Circular: Straight, Diagonal, Diamond (Male and Female)
Pitches (teeth per inch): 12, 16, 20, 25, 30, 35, 40, 50, 80, special
Diametral: Straight and Diagonal
Diametral Pitches (DP): 64, 96, 128, 160, special
Minimum Size: .040 inch (1mm)
Maximum Diameter: 1.500 inch (38mm)
Material Hardness: Knurling to Rc42 depending on material type and size
Volume: 10 piece to 100,000 pieces