Screwdriver bit for step drill

thingiverse

So I needed to drill a half inch hole to make some airtight filament canisters but I didn't have any power tools for my step drill. So I came up with a screwdriver bit design to hold the step drill =)\nIt can be extremely strong when printed with 80% infill. However, you must apply pressure correctly (i.e. not on the x/y axis) or it may break apart. Also, I suppose you can drill harder materials but it will take much longer time. It was perfect for soft materials like plastics!\nAlso, this design is meant to be a tight fit so the step drill/screwdriver bit doesn't fall off by itself. Lower the scale if it's too tight for your needs =)\nPrint Settings\nPrinter: \n Monoprice Maker Select V2\n \n Rafts: \n Doesn't Matter At All\n \n Supports: \n Completely Unnecessary\n \n Resolution: \n 0.1 mm Precision\n \n Infill: \n 80% Density\n \n Notes: \n No need for brim or raft when printed with PEI Surface. However, with the small surface touching the build plate, you must have your bed leveled correctly for maximum adhesion and a smooth print job!