General description The CSPARKV 7pcs Hexagonal Wood Drill Bit Set is designed for efficient and versatile drilling in various types of wood. With a length of 230mm and a range of diameters from 6mm to 18mm, this set is perfect for both hand and electric drills, making it suitable for a wide array of woodworking projects. Technical specifications Auger length: 230mm Diameter options: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm Material: High carbon steel Usage This drill bit set is ideal for drilling in both soft and hard wood, including applications such as railway sleepers, landscape wood, and invisible floating shelf brackets. The self-feed design and coarse screw tip enhance drilling speed and efficiency.