The EKLIND TOOL COMPANY Ball-Hex Shafts measure 2.5 MM x 4 inches, making them ideal for precision work in tight spaces. Constructed from high-quality steel, these shafts provide excellent durability and performance. The ball-hex design allows for a better grip and increased torque, making them suitable for various applications, including electronics and machinery. These shafts are compatible with a range of fasteners, ensuring versatility in your toolkit. Perfect for both professionals and hobbyists, they are essential for any detailed project.