<p>【High Quality】: Using high-speed steel drill bit, high strength and hardness, durable in use and superior drilling performance, serving as a guide to center the guide holes needed for the hinges.</p>< p>【Appropriate Design】 Double-sided hole design Quickly and automatically discharge the sawdust from the hole on both sides without blocking the drill. This saves your time when removing sawdust.</p> <p>【Easy Installation】: Unique design and perfect punching effect. Applicable to the installation of a door hinge. Easy to use and install, quick change of bits, loading and unlocking with one hand.</p> <p>【Multifunctional】Applicable to furniture, kitchens, woodwork, window doors, etc. Woods of different hardnesses require different self-centering drill bits. Simply disassemble the screw and replace the bit with a new one.</p> <p>【With four bits】：4 bits of the most common sizes for woodworkers: 5/64", 7/64", 9 /64" and 11/64"，1 Allen Key;</p> <p>Product Description</p> <p>Technical Data:</p> <p>Product Name: Hinge Drill Set< /p><p>Colour: Silver</p> <p>Material: HSS</p> <p>Product Name: Hinge Drill Set</p> <p>Colour: Silver</p> <p>Material: HSS</p> <p>Size: 5/64'', 7/64'', 9/64'', 11/64''</p> <p>5/64' ': The diameter of the hole is about 2 mm. Use a threaded screw of approximately 2.2 - 2.8 mm</p> <p>7/64'': The diameter of the hole is approximately 2.8 mm. Use a threaded screw of about 3 - 3.5 mm</p> <p>9/64 '': The diameter of the hole is about 3.5 mm. Use a sheet metal screw of approximately 4 - 4.5 mm</p> <p>11/64'': The diameter of the hole is approximately 4.5 mm. Use a threaded screw of approximately 5 - 5.5 mm</p> <p>1. unique design, perfect perforation effect. Easy to use and install, quick bit change, one hand loading and unlocking</p> <p>2. sizes 5/64", 7/64", 9/64", 11/64" for carpenters, joiners, furniture makers and other woodworkers.</p> <p>3.The sawdust is automatically discharged through the top of the holes on both sides without blocking the drill.</p> <p>4. Perfect carpentry tool for woodworking, installing hinges on wooden doors, cabinets, windows, etc.</p>