The ProMAXX Tools by Milton Exhaust Manifold Bolt Repair Combo Kit, No. PMXPWT221PRO, features three guide plates designed for Ford, GM, and CDJR engines. The kit includes easy-to-follow instructions and schematics that allow technicians to perform broken exhaust manifold bolt repairs faster and easier, typically only spending around 15 minutes per bolt depending on the conditions. It provides accurate, reliable, and repeatable results and uses machine-shop grade drill bits with a 135-degree cutting angle with a split point design that prevents walking and reduces bit breakage with smaller chips and less clogging. The tool is made and assembled in the USA.