Mortise Cylinder Drill Guide

Mortise Cylinder Drill Guide Until now, installing a mortise cylinder in the proper location was a hit or miss proposition. With our HIT-22 it will always be in the right spot. Simply mark where the cylinder should go on the door and drill a 1/2" hole. Place the HIT-22 in the lock like a mortise cylinder, tighten the mounting screw and install the lock in the door. You will see the guide thru the 1/2" hole in the door. Using a 1 1/4" hole saw, insert the hole saw pilot in the guide and drill the cylinder hole. You will have a perfect installation or redrill every time. The HIT-22 includes two drill guides, hole saw pilot and extractor handle.