This guy has 25 brand new Razrwires for sale and it’s my understanding that the hinge mechanism can be used to repair your broken Hatchet or possibly a New Square Wire, Mag Four, Mag Four S, Mag M Frame, and Penny. He’s open to reasonable offers. I just picked one up for $30 shipped.
https://offerup.co/Hr0UMWlTeR
https://offerup.co/Hr0UMWlTeR