XJS Knurled Shaft 6mm Dia Potentiometer Volume Control Knob Cap 100 Pcs

The media could not be loaded.  These are great potentiometer caps, but only the ones with colored plastic shaft inserts are the correct 6mm sizing. I received qty(20) each of red, green, blue, yellow and white. All of the red and white ones are correct. Only three of green are correct. All of the blue and yellow, in addition to the remaining green have a molded inside diameter too small to fit a 6mm shaft. It can't even be "forced" onto the shaft. The bore will have to be drilled out or carefully knife-trimmed to fit 6mm.

These are designed for knurled shaft but will work on half-round if you have the tools to ream out the hole just enough.