Cylinder knob for Square shaft 4.0 mm - 4 sizes 16/20/25/30 mm, no supports

A straight cylinder with five circumferential grooves. The quiet one - it disappears into a panel instead of decorating it. Square 4 mm, the size on small valves and furniture fittings. A square carries torque by shape, so this one does not rely on the grub screw. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 16 mm | 13.6 mm | 2.2 cm³ | 2.7 g | | 20 mm | 14.4 mm | 3.2 cm³ | 4.0 g | | 25 mm | 18.0 mm | 5.2 cm³ |…

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