Features:1. This drill uses advanced production technology, high-quality materials, long working time.2. Drill holes neat, smooth, no broken edge, will not cause shaking phenomenon.3. The notch resistance is small, improves the drilling speed, easily removes chips.4. It can be used for a variety of holes of wood, wood products, plastics, plywood and other materials.5. Easy to install, easy to use, just install in the ordinary hand drill can be used. Specification: Type: Auger Bit Material: Tungsten Carbide Size: 15mm 20mm 25mm 30mm 35mm Shank Dia: 8mm (15mm 20mm) 10mm(25mm 30mm 35mm) Quantity: 1pc Application: Can be used for product perforation, door installation, shoots, plastic products, wood and plywood Package Included: 1pc Drill BitsNote: Please allow 1-3mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.