With all this home time available I'm going thru all the back burner projects. I have a very old wilson hardness tester thats been gathering dust for years and 150 100 60 45 and 30kg weights, but no hangar, and I don't even know if the weights are the ones that came with the tester. I'd like to put it back in service. None of the weights I have have a hole in the back for the hangar rod, but all of the hangar rods I've seen on the interwebs already have a 60kg weight attached. So what was the setup for my weight set? If I make a simple hangar that just fits up under the 60kg weight I have is there enough leeway to ballpark calibrate with material of a known harness? I have the weights with a flat on one side like the photo: