In the works, "The Master Jamb Jig," will revolutionize having to prep for strike plates, hinges, throw rod latch catches, etc. Designed to clamp onto jambs that have already been installed. The Master Jamb Jig has fast setup, precision machining, quick easy adjustments, and, just like our Master Door Jig, is capable of hundreds of templating functions. When you have a hardline to hit, trust The Master Jamb Jig. (patented/patents pending)