Ribbed knob for Round shaft 12.0 mm - 4 sizes 25/30/36/44 mm, no supports

Fourteen deep flutes. Grips with oily or gloved fingers, which is why it belongs on machines rather than on a desk. For 12 mm spindles on larger valves and feed screws. As with every round shaft: the grub screw holds, the bore only guides. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 25 mm | 23.6 mm | 6.0 cm³ | 7.6 g | | 30 mm | 23.6 mm | 9.1 cm³ | 11.5 g | | 36 mm | 23.8 mm | 8.5 cm³ | 10.8 g | | 44 mm | 29.0…

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