RS PRO 38.6mm Black Potentiometer Knob for 6mm Shaft Splined

Versatile knob designed for use on panel mounting rotary encoders. They are available weighted, designated light weight (L), medium weight (M) 35g and heavy weight (H) 50gm. The top surface has dual finger locations for fast or slow spinning. The 3 different weight versions provide 3 kinds of inertia when spinning the encoder. Splined push on fixing to shaft.