Squeeze Play Door Mortiser by Locksmith Trainers

Form precise square mortises in hollow metal doors without cutting, drilling, or weakening the door structure. Insert this hardened steel tool into the lock bore, tighten the grade 5 bolt, and the door metal forms around the die to create a perfect mounting surface for your latch or deadbolt.

The tool automatically marks screw locations with center punches. Works on edge-seamed doors (not center-seamed). Accommodates 2.25" x 1" and 2.25" x 1.125" face bolts. Black oxide coating resists rust. Made by SPC - the original manufacturer for over 35 years.