Mentor Plastic Turning Knobs with Collet Fixing and Moulded Pointer - Black - Mentor 4311.
6131, This plastic turning knob from Mentor has been designed for professional equipment and comes with collet fixing.
Stylishly designed with a moulded on pointer, matt anodised body and knurled grip.
Mentor 4311.
6131 Plastic Turning Knob Matt With Collet Fixing - Ø20mm - Black