Features: This drill bit adopts a four blade serrated design, which can effectively improve the drilling speed and is suitable for hard materials such as ceramic tiles, cast iron, and concrete, achieving rapid and accurate drilling effects, saving time and effort. We offer four different diameters of 6mm, 8mm, 10mm, and 12mm to meet the needs of users in various construction scenarios and flexibly respond to drilling tasks with different apertures. Using a standard hexagonal handle to ensure compatibility with the electric drill, easy installation and secure fixation, avoiding slipping during use and improving operational safety. The drill bit is crafted from metal materials with excellent wear resistance and impact resistance, ensuring that it is not easily damaged when handling harder materials, extending its service life, and improving overall economic benefits. Specially designed for dry drilling, no need for water cooling, simple operation, suitable for indoor and outdoor operations, even in environments without water sources, can successfully complete drilling tasks, greatly improving usability. Specifications: Material: Metal Size 6/8/10/12mm Shank:1/4'' Hexagonal Package Includes: 1Piece Four-Edge Serrated Drill Bit note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.