Features: brand new and high quality 1. Small hinges punch positioning feet, ABS plastic material, lightweight portable, easy to operate. 2.35mm / 40mm alloy material drill bit, limiting, controlled punch depth, for sharp turn knifes, high opening efficiency. 3. Uses: Suitable for positioning and installation of furniture door hinges. How to use: (can watch operation video) 1. Determine the position of the hinge cup, draw the center cable of the two wooden boards. 2. According to the specification mark on the hinge positioning, the hole position mark of the base screw can be drilled; 3. Mark the pore site of the upper base screw on the other board, and easily drill according to the hole site; 4. Install the hinge. Specifications: Material:Plastic Color ：Blue Size: Approx.69x62mm/2.71x2.44inch Package Includes: 1PcxHinges Puncher note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.