Pins not drilled in correct locations and hollow. The nut requires over 200 ft-lbs of torque. The pins had to be solid steel or stainless steel, and the position of the pins had to be better so that they fit properly in the nut holes. I got the tool working and it took 2 people to get it working and 1 man pushed the socket with a pry bar to get the pins into the holes in the locking nut. I would pay more money for a better tool to avoid the tool doing its job. The socket works, but hardly. Maybe there are options or they fixed the pinout? Bought 2 of these outlets. One for me and one for another shop mechanic and both had the same pin placement issue. Your luck may change with this outlet.