Major Manufacturing HIT-66-280 Template for Schlage AD Mortise Lock. Our new HIT-66-280 template is designed to quickly and accurately install or retrofit the Schlage AD series mortise locks. All required holes are lined with hardened drill bushings, the larger holes for wire runs will also accept hole saws. The angled hole for the DPS is also templated and is easy to drill. Plates are machined from aluminum and hard anodized. This template requires the HIT-66 clamp system that includes the HIT-4509 mortise alignment plate (HIT-66 clamp system sold separately). The template set includes both inside and outside template guides and DPS wire run guide. All drill guide holes are identified for trouble free drilling. Door range for the HIT-66 clamp system is 1-1/4” to 2-7/8”.