By CTS, high quality 3/8″ threaded brass collar with 3/8″ brass fine spline split shaft. 10% tolerance. This is the standard for volume and tone pots and will make an excellent upgrade for any guitar. Guitar pot, guitar potentiometer, volume pot, tone pot, volume control, tone control, best volume pot, best tone pot, guitar upgrade. CTS 500k Linear Taper Potentiometer.