Step Drill Bit Screwdriver

This model is entered into the Get Things Reparied Design Contest This is a screwdriver design to hold step drill bit using a hex allen socket screw and it uses heat insert to fasten the step drill bit. Things used: 1x M2x3x3.5 Heat Insert (415Pcs Threaded Inserts)1x M3x4mm GHex Allen Screw (340Pcs Hex Socket Head Screws)1x 3D Printed Step Drill Bit Screwdriver Tool: 1.5mm allen wrench Print Settings: 0.16mm Layer height30%+ Support Infill (3D Honeycomb)4 Wall Loops5 Brim (For Bed Adhesivion)No SupportFilament (PETG)