This tool is used with a PT2000 or PTS2000 Air Motor (sold separately) to install and remove U Tube Bolts on GE Traction Motors. The T59451 includes the adjustable height reaction bracket and a 2" six point socket to connect to the 1" drive on the air motor.
The reaction bracket shaft is machined with a vertical groove which allows the reaction plate to slide and lock into three different heights to address the various depths of the U Tube Bolts.