Contractor jig with interchangeable templates for use with a plunge router to cut the mortise & face-plate recess for popular door locks. |For most common sash mortises & dead locks, with up to 3 inch deep mortises & a 7/8 inch or 1 inch face-plate. |Deeper mortises can be achieved with a suitable size of auger bit.|Fast, clean & accurate results on doors 34mm to 58mm thick, even in hardwood.|Steel plates & body.|An auger bit and drill is required to complete deep mortises.|The jig requires a 1/2- inch plunge router with a 80mm plunge, fitted with a 30mm guide bush with 6mm spigot & 12mm diameter long reach cutter. A 1/4-inch plunge router can be used for the face plate but will not achieve full depth of mortise.