Feature:1. High Hardness: This self centring hinge drill offers high hardness, robustness, durability and excellent drilling performance and is the centring guide for the pre drilling required for hinges.2. Double Sided Hole Design: This self centering hinge drill increases accuracy and efficiency. The double sided hole design quickly and automatically discharges sawdust from both sides of the hole, with no drilling blockage, helping to save time in removing sawdust.3. Wide Application: This self centring hinge drill is ideal for hinges, handles, drawer guides and woodworking. Accurate positioning of the grain in various materials, use as awning for seat belts or as a glass window breaker for car safety.4. Stable Operation: The drill bits have a hex shank that fits securely into the drill chuck, ensuring a stable and wobble free operation.5. Easy to Use: The self centering hinge drill is easy to use and operates seamlessly. The self centering feature ensures that the drill bit is perfectly aligned, making it easy to create precise and accurate holes every time.Specification:Item Type: Self Centering Hinge DrillMaterial: 35 steel hex shank, bearing steel drill bitFeatures: Accurate positioning, automatic discharge of wood chips from the hole at the top of the drill bit, no jamming of the drill bitUse: The hinges are fixed to the doors and windows by screws, and the hinge hole cutter is used to make holes for the hinge screws, the drill sleeve can better fix the position and improve the drilling efficiency..Package List:8 xSelf Centering Hinge Drill1 x Hex Wrench