1、METAL STRUCTURE: The hinge jig is made of aluminum alloy, CNC fine grinding 35mm carbon steel bit, thickened alloy blade, wear resistant and durable. 2、ACCURATE LOCATING: Precise hinge locating with built in indexing plates, easy to use with any drill bit, without the need for other special tools. 3、EASY OPERATION: Equipped with adjustable pressure plate and quick fixing clip, quick locating and fastening, no need to move, only handle control. 4、CLAMPING THICKNESS: Adjustable double clamp plate for precise locating, capable of holding 15-25mm thick boards, multi angle drilling and hinge installation. 5、APPLICABLE SCENE: The 35mm concealed hinge jig is widely used for cabinet or wardrobe door hinge installation, woodworking auxiliary drilling, and so on.