Makes installing studs a breaze! No more damaged threads or messing with double nutting. Thread stud into tool, torque down to spec, loosen setscrew to relieve the tension to easily remove the tool. CNC from high quality 303 Stainless Steel. Easily install studs into wheel hubs, cylinders, cases, etc. No damage to threads and removes easily after stud is secured & tight. Hub NOT INCLUDED.