A combination unit designed for Kaba Ilco (Simplex) and Alarm lock pushbutton locks. Quickly locates and permits drilling of all thru bolt holes including lever holes, anchor tabs, and wire run for Trilogy and combination change hole for Kaba Ilco. The HIT-102 is for use with 2-3/4" backset and 1-3/8" to 2" thick doors. Unit has bushings on both front and back plate to allow drilling from both sides of door.