Hex bore gear set M1.5 - 12 involute spur gears + printable hex axles, no screws, no slip

**Torque through the flats, not through a screw.** 12 involute spur gears with a **5 mm hex bore** and a **printable hex axle**: push the gear on and it turns with the axle. No set screws, no glue, no slipping - a simple and reliable way to drive fully printed mechanisms. **In the set** - module 1.5, **10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 48, 60 teeth**, 6 mm face width - hex bore 5.2 mm across flats, hex axle 4.95 mm: sliding fit, no rotational play by design - hex axle is printed lying on…

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