Black Stratocaster Style Knob - Tone SPECIFICATIONSOverall Height: 13mmBase Diameter: 25mmIdeal Shaft Fit: Split ShaftFit Type: Push-on Coarse (18 spline) Tech's notes: "These fit perfectly on Bourns pots, and any other split shaft pots with a coarse spline (18 spline).  They will NOT ... See More