Ribbed knob with hex nut pocket M8 - clamping knob, 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. Takes a DIN 934 hex nut M8 from the back - the thread is steel, not printed plastic, so it survives being done up hard. The bolt runs right through, so its length does not matter. M8 is the machine-table size: clamps, stops, anything that must not shift under a cut. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|-…

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