This template is used to prep doors to accept the following Marks Mortise locks with knob or lever handle rose trim; 5220, 5260, 5600, 5610, 5620, 5630, 5640, 5650, 5660, 5670, 5680, 5690, 5695, NYC126 and NYC131. Also installs the following plate trim with knobs or levers; 5300, 5370, 5380, 5390, 5395, 5700 and 5710. All hole locations are piloted with hardened drill bushings. Larger holes required for cylinders or spindles are located and drilled first with a 1/4" diameter hole, this serves as a pilot hole for the correct size hole saw. All hole locations on the template are identified for use. Requires HIT-45 Clamp with HIT-45ML1 Locator.