Built a 250 kcmil URD wire bender for routing service wires into power boxes for an all in one 12kw power inverter and 200amp transfer switch box .
Used 1/2" ID square tubing to accept a 1/2" drive rachet or breaker bar, ball bearing on outer end with a roller pressed over the bearing and then drilled out and welded a 3/8" square drive adapter end for the inner so that different diameter sockets could be used depending on wire diameter. Who knows may even work or may break it , but it is worth a try.
Tubing is a bit thin that I had so will be interesting to see how it works overall. 250kcmil is about 9/16 diameter bit bigger than 4/ought Aluminum stranded service wire with a tough direct bury insulation layer. Roller is a bit deformed made it out of the 5/8" thick x 1" steel plug cores from annular drilled holes in the backhoe thumb.
Worth a try, know I can't bend the cable near sharp enough with bare hands. Also bought an amazon 1/2' drive unit for $9 that does seem heavy enough but having 2 should help getting the wire through 2" corner LB conduit boxes.
