THESE JIGS ARE SUPER COOL AND VERY EASY TO USE...QUICK...EASY...DONE ...LIKE WHAM, BAMM , THANK YOU MAMM!! PREP DOORS FOR MORTISE LOCKS IN A SNAP...HOLES WILL LOOK FACTORY MADE. THESE JIGS ARE FOR BOTH BEVELED AND SQUARE EDGE DOORS ...WORKS ON 1-3/4" AND 2.0" THICK DOORS. JUST CLAMP THE JIG TO THE DOOR AND DRILL DESIRED HOLES WITH FORSTNER BITS OR HOLE SAW . EACH KIT INCLUDES ALL REQUIRED FORSTNER BITS, (2) CLAMPS AND A STURDY CARRYING BAG...EVERYTHING YOU NEED IS RIGHT THERE....THE ONLY THING YOU PROVIDE IS THE DRILL. ...WHAT A DEAL !!! WE CURRENTLY HAVE JIGS FOR SCHLAGE, BEST, CORBIN RUSSWIN, YALE, SARGENT, FALCON, DORMA, PDQ, HAGER, SAFLOK AND MORE ARE BEING ADDED ! IF YOU DON'T SEE THE LOCK YOU NEED OR IF YOU NEED A DIFFERENT DOOR THICKNESS JUST GIVE US A CALL AND WE CAN MAKE IT HAPPEN FOR YOU.... USUALLY IN ABOUT A DAY OR TWO. THEY'RE CRAFTED IN THE USA FROM THE BEST STUFF NATURE HAS TO OFFER.