Quickly and accurately install Locinox surface mounted locks and keeps with our brand new Drill-Fix jig. This jig is designed to self-center on square or round posts, and guarantees perfect alignment. This will allow you to easily drill the 4 hole pattern for the lock or the two holes necessary for the keep. Seamless installs in a flash. The Drill-Fix comes in a sleek and sturdy case that includes all the necessary accessories to install Locinox locks and keeps.