. the Door Hinge Installation Kit.. This addition for the Door Installation Program makes installing door hinges a breeze with integrated router bit depth set, removable adjustments for setting hinge length and shape and much more. To avoid damage to your door, this kit has non-marring clamps to leave your door in perfect condition after use. Be ready to tackle your project right away since the kit includes a router bit and self-centering hinge bit. Be sure to look at the rest of our door lock products for all of your door lock projects.