• USA Made CTS Pots have 24 splines and a bushing diameter of 3/8".
• Metric pots (found in foreign made guitars) have 18 splines, and a bushing diameter anywhere from 7.8mm (5/16") to 9.5mm (3/8").
• If you plan on installing one of our Premium Les Paul Wiring Harnesses into a guitar with metric pots, you will need to purchase new knobs, and possibly modify the holes that the existing pots pass through.
