Install doorknobs, latches and locks including deadbolts quickly and easily with this installation kit from Task Tools. The kit includes a one-handed rack-and-pinion system that makes it super easy to secure the guide template to the door. The plastic template rests on the edge of the door at just the right inset distance to offer perfect cutting alignment. High carbon steel hole saw blades cut quickly through even hardwood doors with no splintering around the entrance hole for better outcomes and no touchup work after the hardware is installed.