Define the knurled feature on the drawing
A knurling service request should identify the surface, pattern and dimensions needed on the finished part. Knurling may be specified where a component needs a defined textured area, but the required grip, appearance or fit depends on the part and its use. A general note such as add knurling leaves room for different interpretations.
Details to include
- Pattern type or controlled reference, such as straight or crossed
- Knurled area location, length and start/stop position
- Material grade and starting diameter
- Finished diameter or dimensional acceptance after the operation
- Edge transitions, adjacent shoulders and surfaces to protect
If the knurled area is close to a shoulder, groove or thread, show the relationship clearly. State whether the texture is intended for grip, visual identification or another function, and identify what the inspection should check.
Coordinate knurling with the part sequence
Knurling can affect the surface profile and dimensions around the feature. Confirm how it relates to preceding and following machining operations, coating or assembly. If the part is finished after knurling, specify which dimensions are measured before or after that step.
For a turned component, compare the relevant CNC turning service scope and note where the knurled surface appears on the drawing. A quote request should include the material, quantity, pattern, feature dimensions, finish and inspection expectations.
Review before production
Confirm the drawing revision and approve the pattern reference, location and acceptance dimensions. If the feature is used in a safety-critical or regulated assembly, the responsible design team should define and validate the requirement in the complete product.
Send the drawing and quantity through the custom CNC machining quote page so the requested scope can be reviewed.
