How to Eliminate Knurling Wheel Double Tracking

Double Tracking means that the knurling wheels are not tracking properly. In this situation, the knurling wheels will create a different pattern than the original design and may overlap or "double die"

There are two main causes of a knurling tool double tracking: 

1. The knurl wheel isn’t set deep enough into the workpiece.  Dorian Tool recommends increasing the depth. The knurl depth should always equal 35% of the knurl pitch.
2. The circumference of the work piece blank is not a multiple of the knurl pitch. To correct this, you must change the before-knurl diameter of the part or select a knurl wheel with a different pitch.

Dorian Tool  has developed a “Knurling Calculator Spreadsheet” that can calculate all of the parameters to avoid double tracking.

If you would like to request an electronic copy send us a note in the comments section below or, for faster results, in the form you get when you click the button below.  We'll quickly get a spreadsheet sent over to you!

Contact F&L Technical Sales