Screwdriver sharpening tool
di Prospect3dlab
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Descrizione
Precision screwdriver sharpening tool. Often used by watchmakers, it will take care of propper angle of screwdriver.
Use 608 ball bearings (same one as for fidget spinners and skateboards), and M3 machine screw (hole is 2.8mm) and screw it into plastic. Print flat, glue toghether and then hammer ball bearings onto places.