I got tired of the crummy handle on my arbor press used for making gas checks. I had a round knob handle from one of my Dillon 550 presses. The extension of the handle was too shot to work. After a few measurements I mounted The drive in a vise and started filing, a bit narrow for the handle and wider for the 7/8" nut. The shank was relieved (good) so I used some .016" aluminum shim stock to fit the shank and locked into place. Now I can make checks for my 30 cal rifles without discomfort.
Attachment 262530Attachment 262531
Close up photo Full handle Length