Mark if I were going to make one of these for myself I'd find a about an 1" of 1" inside diameter square tube. I'd then use a file to square the corners, relieve the inside weld and just slightly chamfer the edges so the socket fits over the nut nice. Then I'd find one of the following items. A broken socket about in the 11/16 to 3/4 range that just fits inside the square or a 5/8 to 3/4 - 1" bolt corresponding nut and washer.CAVU Mark wrote:I have available a number of talented people, machinists (they call themselves toolmakers) and fabricators at a local Museum where I volunteer so maybe I can fab one for myself.
- If you find a socket cut it down so you just have the square drive and about 3/4 of the socket. Slip (press/hammer) that into the square tube and weld.
OR
If you find a bolt, washer and nut combination, spin the nut on the bolt with the washer on it. Place the bolt combination with the head of the bolt in the square to visualize the finished product. Make sure the square tube is deep enough to fit the square nut with the bolt head inside it. You may need a large area washer on the bolt to completely cover the square tube end. Remove the bolt combination and weld the nut to the bolt being careful not to ruin the nut shape so it can't be driven by a socket. Weld the bolt heat do to the washer, then place the bolt head back in the square tube and weld the tube to the washer. You might also want to weld the bottom of the nut to the washer but you must be able to get a sockekt on the nut when your done.
Use grinder to finish to suit and paint green (or red if you want to sell it for a premium).
The broken socket might be hard to find and you will be limited by the drive size you find and the clocking you welded it in that according to Murphy's law won't work with the torque wrench you have.
The nut drive parts on the other hand are easier to find, is driven by what ever size socket drive your socket has, and the clocking possibilities between the square socket, your drive socket and your torque wrench are greater.
But I wouldn't know anything about making these.