This is a riff on FreddyZ's Print-in-Place Ratcheting Screwdriver. It is completely symmetrical – both ends are identical. To drive, shove your bit in one end. To reverse, shove your bit in the opposite end. The handle has storage for up to 6 additional bits. Designed for 4mm shank mini bits up to 32mm long.

Printed in PLA with 0.2mm layers and no supports. Both the internal ratchet/socket and the external housing print-in-place, and it operates immediately with virtually no “break-away” needed.