I have just "repaired" one of my torque wrenches. What had happened was that I was using the long length of the wrench as a breaker bar (yeah, I know this isn't good for the wrench) and I put so much torque on the nut that I twisted the central post where the socket mounts. The wrench in question doesn't have a reversible ratchet mechanism, you have to remove the central square drive part and re-insert it from the other side to reverse the action of the wrench (if that makes sence).
Anyway, in order to remove the socket drive I had to saw it in half as the twist was sufficient to prevent the drive being withdrawn from the wrench in the normal way.
So, I'm after a 3/8" adapter that is square on both ends (ie it could take a socket on each end). I can't for the life of me find such a part online anywhere, but I'm not sure what it would be called. Anyone have a clue?