Our most versatile drill guide for retrofit jobs The HIT-111 is a multipurpose jig used on both wooden or metal doors to retofit cylindrical lever locks by Assa, Arrow, Corbin, Marks, Schlage, Russwin and many more HIT-111 is your all-around tool for ADA mandated lever handle locks Drill bushings on both sides of fixture to allow drilling from both sides of door Fits 1 3/8" to 2" doors with standard 2 3/4" backset or 3 3/4" and 5" backset doors with the HIT-BAK