Features: Crafted from high strength S2steel, the Star Bit Set offers excellent durability and wear resistance, ensuring a long service life for your fastening needs. With a 100/50mm length design, these magnetic star screwdriver bits are perfect for deep hole operations, providing a precise fit to prevent stripping and reduce wobbling. Ideal for professional repair technicians, DIY enthusiasts, and home tool users, this set is a must have in any toolkit. Multifunctional in application, it is suitable for home appliance repairs, furniture assembly, and electronic product maintenance, making it a essential addition to your power tool collection. The 1/4Inch hex shanks fit seamlessly into impact drivers and drills without the need for a adapter, enhancing your efficiency across various tasks. Specifications: Component:S2Steel Shank Diameter:6.35mm/0.25inches Length:50mm(1.96inches)/100mm(3.93inches)(Optional) Package Includes: 10Pcs Star Bit Set note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!