To install these hinges make a simple jig to set the location for the hinge and drill the holes. Begin with a piece of wood about 1" square. Find some metal or laminate the same thickness as the hinge leaf, approximately 1" x 2", to act as a spacer. Determine the placement of the hinge on the door. Cut the wood to the same length as the distance from the bottom of the hinge to the bottom of the door. Fasten the spacer to the bottom of the wood block. Place the jig against the bottom edge of the door and place the hinge against the top of the jig and register the barrel against the edge. Drill holes for the screws in the two countersunk holes that are exposed. Repeat this at the other end of the door. To locate the hinge on the frame, place the jig in the bottom corner of the frame. Place the hinge on top of the jig and register the barrel against the edge. This time, use a self-centering bit to drill holes in the non-countersunk holes. Your door should be the height of the opening minus twice the hinge leaf thickness. Mount the hinge to the door with the proper undercut hinge screws, and then the door to the cabinet.
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