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Modern collet knob system
Different knob sizes and combinationsCover with a matt chrome finish (sizes 23-40)Fastening with collet fixture systemWith recess for marking element or withoutCOM-KNOBS with Peak in redCOM-KNOBS with Peak, multicoloredCOM-KNOBS with Peak, one coloredCOM-KKNOBS without recess for marking elementCOM-KNOBS cover with finger recessCOM-KNOBS with dial (accessory)Modern collet knob system
Different sizes and combinations
Cover with a matt chrome finish (sizes 23-40)
Fastening with collet fixture system
With recess for marking element or without recess
COM-KNOBS with Peak in red
COM-KNOBS with Peak, multicolored
COM-KNOBS with Peak, one colored
COM-KKNOBS without recess for marking element
COM-KNOBS cover with finger recess
COM-KNOBS with dial (accessory)
Modern collet knob system


Modern collet knob system

Aesthetic design, a modern selection of pastel colors, and a secure collet fixing system are the main features of our COM-KNOBS range. These very attractive tuning knobs will give your application a high-quality appearance.

  • modern and innovative control knobs
  • NEW: cover with a matt chrome finish for a classy metallic look (sizes 23-40) 
  • reliable operation with the tried and tested collet fixing system
  • convenient assembly from the front with tight fitting on the axis
  • with/without slot for arrow marking elements
  • clip-on covers with or without a finger recess for finer control and adjustment
  • also suitable for fitting accessory disks, dials, stator and nut covers
  • the design is similar to our innovative TOP-KNOBS series; this guarantees you a uniform appearance when using the two knob technologies
  • modern color combinations

knob sizes   boreholes
ø 16, 20, 23 mm  4 mm, 6 mm, 1/4"
ø 31 mm  6 mm, 1/4"
ø 40, 50 mm  6 mm, 8 mm


For rotary potentiometers with shaft ends corresponding to DIN 41591.
  • Measuring and control technology
  • Medical and wellness devices
  • Laboratory equipment
  • Heating and air conditioning
  • Communication equipment
  • Building management

  • Select Versions
  • Catalog Documents
  • View Customizing Options

Select which version/size you want and click "select".

With recess for marking element "Peak"
COM-KNOBS with Peak
Without marking element
COM-KNOBS without marking