Small M3 socket (outer diameter 7.8mm) (Ant PCB mill)

Basically a smaller M3 socket that fits into smaller screw holes. This was necessary to build the Ant PCB mill, since some of the holes were too small to fit a regular socket.

I printed this in PLA which probably isn't the best material, but for us it got the job done. I'd recommend printing this in something like Nylon to achieve better durability.

Design was made in Fusion 360 and printed on a Prusa MK3S. There is bridging in the print, but no supports necessary. The bridging is so small that it should be easily doable for any modern printer with adequate part cooling.