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: Material: Carbon Steel Size: 15mm+20mm+25mm+30mm+35mm Color: Silver Application: Can be used for product perforation, door installation, shoots, plastic products, wood and plywoodPackage included:5pcs drill bits with boxNote: 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.