Bar knob for Round shaft 4.0 mm - 4 sizes 30/36/44/54 mm, no supports

Two tips opposite each other, the bar knob from old test equipment. Both ends point; mark one with a dab of paint and the setting reads from either side. For plain 4 mm shafts, held by an M3 grub screw. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 30 mm | 13.6 mm | 3.5 cm³ | 4.5 g | | 36 mm | 15.1 mm | 5.3 cm³ | 6.7 g | | 44 mm | 18.5 mm | 8.8 cm³ | 11.2 g | | 54 mm | 22.7 mm | 15.1 cm³ | 19.1 g | Bore measured…

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