Stryker Xia 3 Anti-Torque Key Manual Surgical Instrument; Catalog Number 48237026. || Product Usage: : || Reusable instrument used to aid in the final tightening of the spinal construct. Intended Use: The Anti-Torque Key allows the Torque Wrench to align with the tightening axis and maximizing the torque needed to lock the implant assembly during final tightening of the spinal construct.