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Mentor Plastic Turning Knobs with Collet Fixing Black

Mentor Brand: Mentor

A range of plastic turning knobs from Mentor designed for professional equipment and with collet fixing. Stylishly designed with a modern plastic construction.

  • Axle range Ø 4 or 6mm
  • Knob Ø: 11.8, 14.5, 20, 28 or 36mm
  • Colour: Black
  • Series 11.5
Description Image Product Buy Pricing (Ex VAT) Diameter Colour Shaft Diameter Type Material Fixing
Mentor 330.4 Plastic Turning Knob - Collet Fixing - Ø 11.8mm - Black
Mentor 330.4 Plastic Turning Knob - Collet Fixing - Ø 11.8mm - Black
Standard range
Order code: 57-5684
MPN: 330.4

175 available to back orderBack-order availability date - 09/01/2026
5+ £1.24
Price per unit Ex VAT 		11.8mm Black 4mm Control knob Plastic Collet
Mentor 331.6 Plastic Turning Knob - Collet Fixing - Ø 14.5mm - Black
Mentor 331.6 Plastic Turning Knob - Collet Fixing - Ø 14.5mm - Black
Standard range
Order code: 57-5685
MPN: 331.6

83 available to back orderBack-order availability date - 09/01/2026
3+ £1.57
Price per unit Ex VAT 		14.5mm Black 6mm Control knob Plastic Collet
Mentor 332.4 Plastic Turning Knob - Collet Fixing - Ø 20mm - Black
Mentor 332.4 Plastic Turning Knob - Collet Fixing - Ø 20mm - Black
Standard range
Order code: 57-4844
MPN: 332.4

25 available to back orderBack-order availability date - 09/01/2026
3+ £1.97
Price per unit Ex VAT 		20mm Black 4mm Control knob Plastic Collet
Mentor 332.6 Plastic Turning Knob - Collet Fixing - Ø 20mm - Black
Mentor 332.6 Plastic Turning Knob - Collet Fixing - Ø 20mm - Black
Standard range
Order code: 57-4845
MPN: 332.6

541 available to back orderBack-order availability date - 09/01/2026
2+ £2.25
Price per unit Ex VAT 		20mm Black 6mm Control knob Plastic Collet
Mentor 333.6 Plastic Turning Knob - Collet Fixing - Ø 28mm - Black
Mentor 333.6 Plastic Turning Knob - Collet Fixing - Ø 28mm - Black
Standard range
Order code: 57-4850
MPN: 333.6

275 available to back orderBack-order availability date - 09/01/2026
2+ £2.80
Price per unit Ex VAT 		28mm Black, white marker 6mm Control knob Plastic Collet
Mentor 334.6 Plastic Turning Knob - Collet Fixing - Ø 36mm - Black
Mentor 334.6 Plastic Turning Knob - Collet Fixing - Ø 36mm - Black
Standard range
Order code: 57-4846
MPN: 334.6

40 available to back orderBack-order availability date - 09/01/2026
2+ £3.65
Price per unit Ex VAT 		36mm Black 6mm Control knob Plastic Collet
Order codeDiameter (mm)Axle (mm)Mftrs part no.
57-568411.84330.4
57-568514.56331.6
57-4844204332.4
57-4845206332.6
57-4850286333.6
57-4846366334.6


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