AK Builder's Bit Kit

thingiverse

This is designed for use with McMaster Carr Drill Bits and reamers bought on amazon. It has options for either drilling a receiver using a jig (4mm, 4.5mm, 5mm, 5.5mm, and 10mm) or by using layout lines (hence the reamers. I'd recommend drilling 0.5 to 1mm undersized then reaming to size if using layout lines). It comes with a lid, but I made the drill bit channels small enough to be a press fit so they shouldn't fall out if printed on an FDM printer, i don't know how it would respond to SLA printing. If you don't plan on transporting or storing the bit set in a container you probably don't need the lid.