This heavy duty wrench was designed to work with our Phantom Q.D. mounting system. On one side you'll find a 3/4" open ended wrench made to loosen/tighten our Q.D. Mounts and our Direct Thread mounts. On the other, a teeth pattern made to fit around our Phantom Q.D. adapters as well as a 1/2" Torque wrench slot to help tighten things to a specific torque spec. This is the replacement wrench you need for your Nitro® or Turbo® K Suppressor System.