Positioner Hinge Fixture Installation Wood Drill Guide Rail Hinge Hole Cabin Feature: 1. Quick Hinge Installation Jigs The hinge drill guide can help you quickly drill the perfect concealed hinge hole. Suitable for furniture door cabinet hinge positioning and installation 2. 35mm Hinge Hole Saw Jigs ABS plastic hinge pocket hole jigs, lightweight and portable, easy to operate. How To Use: 1. Determine the position of the hinge cup, the short board faced upwards, the screw is fasten on the edge of the board, drill the hinge cup hole 2. Draw a corresponding center line on the other board, the short board faces downward, the middle line is aligned with the inverted triangle, drill the positioning hole of the hinge base 3. Install the hinges. Note: There might be 2-3cm errors of dimension data due to pure manual measurement. There might be slightly color difference due to different light and monitor effect. Package including 1 x positioner