Metal Detector Coil Arm Part and extension bar Version 2.0

My first Design! - I used Tinker Cad. I suggest supports. (I use Simplify 3D). I printed OK with no raft but if I had to do it again, I'd probably use one. You can see the broken part (and my poor attempt at epoxy - which I think is conductive enough to affect the metal detector). It comes off a Bounty Hunter metal detector but I noticed the same type of weak connector on my White's MXT. The metal rod on both is 19mm diameter. The part was too big for my printer so I made it into two parts. One