The NEW Ford Power Stroke 6.7L Fuel Injector Seat Restorer (Robby ProKit) allows automotive techs to easily refurbish the fuel injector seat in the Power Stroke 6.7L cylinder head. It restores the fuel injector seat seal, which improves cylinder head compression and engine performance, in approximately 15 seconds per fuel injector seat. The Robby Power Stroke Fuel Injector Seat Restorer is designed to take a small fresh cut into the aluminum seat refurbishing it completely. The current alternative is to use a series of brass bristle brushes. However, the issue with using brass brushes is that brass is softer than aluminum so this means they cannot cut into or refurbish the fuel injector seats. ProMAXX Toolâ??s 6.7L Power Stroke Fuel Injector Seat Restorer only takes 15 seconds or less per seat. Now thatâ??s fastâ?? ProMAXX Fast! We make sure you donâ??t have to sacrifice accuracy or precision for a quick repair. The toolâ??s design adapts to the depth of the cylinder head for the perfect fit and cut. With tl knurled knob, a technician can manually power the tool by hand or attach the tool to an electric/air powered drill. The removal of valve cover is not necessary either. So, there is no need to worry about damaging it while restoring the seat. The NEW Fuel Injector ProKit restores the Power Stroke 6.7L engine to optimal performance specs. This one-of-a-kind tool combo kit lets repair shops offer a new service to customers while charging whatever fee they want, while realizing a quick return on investment. A win for the repair shops and a win for their customers!