Premium Quality: The drill bit is made of carbide alloy, which makes the cutting sharper, the blade has high precision, smooth cutting, good impact resistance. Concealed Hinge Drilling Template: Features a 'V' locator that works from a center reference line, easily locates the center points of hinges and mounting plates, the hole position is accurate. Easy to Use: Simply dip the cup hole on the cabinet door or desk yourself with the hinge drilling template, even if you are not a professional, you can easily and quickly find the drill centers. Correct Size: The drill diameter is 35 mm, suitable for 35 mm concealed hinges. Package Includes: 1 x positioning unit and 1 x Forstner drill, ideal for drilling concealed hinges and locks. Versatility: Suitable for drilling machine, bench drill, vertical drilling machine etc. All wood and wood products, plastic, plywood and other materials you need for exquisite perforation, suitable for industrial hinge installation, woodworking and maintenance, model production etc.