UNIQUE DESIGN: The chip removal holes are uniquely designed on both sides of the drill bit. During use, you don't have to worry about the sawdust blocking the drill bit and jamming the drill bit. This will make your drilling work smoothly to the end and improve efficiency. MULTIPLE SPECIFICATIONS: Different sizes of wood require different types of drill bits. The hinge drill set includes 7 different sizes of drill bits to meet your various specifications and sizes. Our products are drill bits that are accurately positioned and will not shift. MATERIAL: The hinge drill is made of materials, with high hardness and durability, which is very suitable for long-term use. WIDE RANGE OF USES: Simple structure, easy to operate and install, high-precision drills are used to drill precise guide holes in cabinet door hinges, handles, woodworking, etc., suitable for professionals and family DIY. TIPS: When opening holes, please adjust appropriately according to the hardness of the wood. If the wood is soft, you can choose the smaller one, if the wood is hard, you can choose the corresponding or the larger one. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.