This aluminium turning knob from Mentor has been manufactured for professional equipment and comes with setscrew fixing. Stylishly designed with a black indicator line and corrugated handle surface. Fastened with a grub screw. * Modern design instrument knob * Axle Ø: 4mm * Colour: Aluminium * Height: 15mm * Knob Ø: 15mm * Manufacturer's part 5615.4614 https://elecena.pl/product/27213305/mentor-5615-4614-aluminium-turning-knob-with-setscrew-silver-black-15mm 2024-11-10 https://elecena.pl/product/27213305/mentor-5615-4614-aluminium-turning-knob-with-setscrew-silver-black-15mm 2026-07-07