Make from Aluminum alloy, high strength, high hardness, not easy to rust You can easily clamp and fix the concealed hinge jigs, quickly drill holes and install hidden cabinet door hinges Be able to punches holes for different kinds of boards, install door panels, cabinets, wardrobes It can fix and punches accurately, prevents injury during operate, and improve accuracy The 35MM hinge opener is suitable for 12-25mm wood, 35mm hole to edges distance of 5mm, comes with 35mm hole sawing and 2mm drill bit, can be used with any electric drill, 35MM hinge positioning opener is suitable for cabinet/kitchen/closet/cabinet door hinge punching and positioning，which is suitable for most common hinges, Manufacturer: LiRRvb