This tool is designed for use both on construction sites and in carpentry workshops. It allows you to significantly increase your productivity and achieve excellent results when installing door hinges. With this kit, you don't have to spend time marking. You simply use the hinge itself as a template - a rapid and easy way to work. The result is precise and accurate hinge recesses every time. The kit includes a long router bit and a guide sleeve that make it easy to cut the hinges into the door frame.