Includes: 10 micro hex shank drill bits Hex shank size: 1/4" (inches) Drill bit sizes: 51, 52, 53, 54, 55, 56, 57, 58, 59, and 60 Ideal for precision maintenance and repair tasks The 10-Piece Micro Hex Shank Drill Bit Set is expertly designed for precision drilling and is perfect for a variety of maintenance and repair tasks. Each bit in this set is crafted from high-speed steel, ensuring durability and longevity while delivering exceptional performance. With sizes ranging from 51 to 60, these micro drill bits are ideal for intricate work, allowing you to tackle even the most detailed projects with ease. Whether you are a professional tradesperson or a DIY enthusiast, this versatile drill bit set can be utilized for a wide range of applications, including electronics, jewelry making, and fine woodworking. The 1/4" hex shank allows for quick and secure bit changes, making it easy to switch between sizes as needed. Elevate your toolkit with this essential set that combines precision, durability, and convenience. - Includes 10 micro hex shank drill bits for versatile applications - Hex shank size of 1/4" ensures compatibility with most power tools - Drill bit sizes range from 51 to 60, perfect for precision tasks - Made from high-speed steel for enhanced durability and performance - Ideal for maintenance, repair, and intricate projects in various materials