High Quality: LENXNMY Boring Bit adopts superhard alloy which makes cutting edge, chip removal smooth with outstanding boring capacity and excellent boring performance. Lenxnmy Hinge Cutter: Boring diameter is 35mm. Special removable depth stop design makes drilling easier. Lenxnmy Concealed Hinge Boring Jig: Features a "V"-locator that works off a center reference line and quickly locates drilling points for all brands of hinges and mounting plates. Easy to Use: Easily and conveniently cut hole on wardrobe door or desk with the hinge jig, suitable for your own operation at home, even if you are not professional, you can quickly locate drilling points for hinges and mounting plates. Multiple Use: Concealed hinge cup guide sets suitable for drill press, pistol drill, bench drill, vertical drill, hand electric drill, motor-driven drilling machine and mobile ribbon magnetism drilling machine, etc. The drill guide is widely used, which is suitable for woodworking DIY or professional engineers. Hinge punching positioner, ABS plastic material, lightweight and portable, easy to use; Alloy material Rotating head, sharp and durable knife, suitable for positioning and installing furniture door cabinet hinges Instructions: 1. Determine the position of the hinge cup, with the short card facing up, fix the screws to the edge of the board and drill the cup hole; 2. Draw the corresponding center line on the other card, the short card is facing down, the center line is aligned with the inverted triangle, and the arbour seat positioning hole is drilled; 3. Install the hinge. Product size: 77 * 66mm Product weight: Hinge positioner Monomer 34g; monomer + 35mm hole opener 109g; monomer + 35mm adjustable hole opener 150g Quantity: 1 Set Note: It does not include other things, the color is based on the first picture, and the other pictures only show the effect. Due to the differences between different monitors, the picture may not reflect the actual color of the item. . due to manual measurement. Please allow the deviation. Thank you!