The Heavy Duty Concealed Cabinet Hinge from Sugatsune, the Japanese hardware maker. It drops into a standard 40 mm cup bore, so it fits the boring pattern a cabinet shop already uses. Heavy duty concealed hinge eliminates the need to use 5 or more standard euro hinges in cabinets or furniture. This reduces installation cost and time, and provides a better overall aesthetic. 2 hinges hold 55 lbs (25 kg) and 3 hinges hold up to 88 lbs (40 kg). Because of the high load capacity, short and wide panels can easily be supported. Clip-on type for easy installation, and 3-way adjustability with door installed. Rated to 55 lb per pair. Suits doors up to 35.4 in. wide and 94.5 in. tall. For door leaves up to 1.18 in. thick. Adjustable after the door is hung. Built in steel, with mounting screws included.