Sifam collet knob on 1/8" shaft

[rbuskov]

Has anyone tried using Sifam collet knobs designed for 4 mm shafts with 1/8" (3.18 mm) potentiometers? I wonder if it's possible to get a good fit so the knob doesn't "wobble" when it's turned?

Knob: S110 - Sifam Controls

 

[fragletrollet]

Maybe this can help: 3-4mm shaft adapter