Template guide for use with Alarm Lock DL3500 Series mortise locks. All hole locations for thrubolts, wire runs, levers, etc. are located with hardened drill bushings. Larger holes used for mortise cylinders or spindles are first located with a 1/4" diameter hole. This serves as a pilot for the correct size hole saw after template is removed from door. All hole locations on template are identified for use. Requires HIT-45 Clamp with HIT-45ML1 locator.