ProGrip Hinge Mortising Jig
This hinge mortising kit clamps onto your door and uses the supplied mortise bit (mounted in your trimmer or small router) to recess your hinges accurately time and again. A quick and simple solution to a normally difficult task.
Replacement bits for FM-78, Mortising Bit 801-128-11B has a shallow 8mm cutting depth making it ideal for this job, as well as cleaning up rebates and trenches.
It is possible to route the hinge positions on the door jamb using the ProGrip Hinge Mortise Jig, provided the door stop and casings are not already in position.