- 6-piece screw tap drill bit set designed for M3 to M10 sizes, ensuring versatility for various threading applications. - Crafted from high-speed steel (HSS) for exceptional durability and precise performance, ideal for both professional and DIY projects. - Optimized for countersinking and deburring, these bits provide a comprehensive solution for your drilling tasks, ensuring clean and smooth finishes. - Features a convenient 1/4-inch quick change hex shank for easy installation and fast switching between bits, significantly reducing downtime. - Metric combination bits cater to a wide range of applications, making them perfect for automotive, construction, and maintenance tasks. - Attractive gold finish not only enhances visual appeal but also signifies high quality, ensuring you invest in reliable tools. - Suitable for use in drilling pilot holes, creating threads, and working with various materials, these bits are essential for any toolkit.