(This review was collected as part of a promotion.) With the instructions being clearly outlined , this Weiser Powerbolt Electronic Deadbolt was extremely easy to install. Correct, all that was needed was a screw driver and a pre drilled hole on the door. I love that you can have many passwords if needed and the ease with using. It lets you know when the door is locked with the mechanism making noise so no need.to wonder if.the door is actually locked. If I could recommend one thing it would be to have a handle of sorts on the inside of the door. Other than that our garage feels more safe having this deadbolt installed.