Our new HIT-66-274 template is designed to quickly and accurately install or retrofit the Sargent "IN"  series cylindrical locks. All required holes are lined with hardened drill bushings, the larger holes for the cross bore and latch holes are sized for hole saws and auger bits.  There is even drill guide locations for the angled wire raceway hole on the inside of the door. All drill locations are identified for easy identification. Plates are machined from aluminum and hard anodized.  This template requires the HIT-66 clamp system that is sold separately. The template set includes both inside and outside template guides. 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”.