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KN-A03 Potentiometer Knob Cap, Inner 6mm, External 27mm*16mm
The KN-A03 is a type of potentiometer knob cap with an inner diameter of 6mm and an external diameter of 27mm by 16mm. Potentiometer knobs are used to adjust the resistance value in an electrical circuit, and the cap is used to protect the knob and provide grip for adjusting.