By marking the position, this hinge hole opener helps to locate the hole quickly and improve the efficiency of opening. Available on both sides, this hinged hole opener is a functional installation tool. This hinged hole opener is constructed of abs material. The length is 69mm and width is 62mm. It is suitable compatible positioning and installing hinges of furniture doors and cabinets. Item Name: Hinge Hole Opener Material: ABS Features: Hole Depth Control, Limitable, Center Alignment Size Details: L: 6.9cm/2.72", W: 6.2cm/2.44"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Usage Method: 1. Determine the position of hinge cup and draw the central connecting line of two boards. 2. Mark the hole position of the base screw according to the specification mark on the hinge positioning ruler, and then drill the hinge cup hole. 3. Mark the hole location of the base screw on the other plate, and drill holes easily according to the hole location. 4. Install hinge. Package Includes: Style A: 1 x Hinge Hole Opener or Style B: 1 x Hinge Hole Opener 1 x Puncher