Three-point knob for D-shaft 6.0 mm - 4 sizes 30/36/44/54 mm, no supports

Three points on a round body, joined by straight tangent flanks. Unlike the soft three-lobe knob the fingers find a stop at once - the grip for things that must be done up firmly. Fits a 6 mm shaft with the flat at 4.5 mm. The bore is built to 4.6 mm, the knob-side figure from the OKW catalogue per DIN 41591 - the extra tenth is the standard's own clearance, not slop I added. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|-…

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