The Ford 4.6/5.4L V8, and 6.8L V10 Triton, two and three valve engines Exhaust Manifold Broken Bolt Repair Kit gives technicians working on Ford 4.6/5.4L V8, and 6.8L V10 Engines a productive solution for the challenging repairs they face. Quickly remove broken bolts by drilling dead on center. No need to use a center punch to mark the damaged stud. Since it can be mounted in any orientation to access every single stud, the Rocky is a huge help for a frustrating repair.