High-Quality Material: These Torx screwdriver bits are made of premium materials, which ensure durability and long-lasting use, better than normal S2 steel, hardness HRC 61-62. Secure Fit: Made in precision CNC machine, precise hole size and concentric with TORX tip.These screwdriver bits feature a secure fit design that ensures a tight grip on screws, reducing the risk of slipping and stripping during use. Complete Set: Our set includes 8 different sizes of Torx screwdriver bits (T8H, T10H, T15H, T20H, T25H, T27H, T30H, T40H), providing you with a complete range of sizes to meet all your needs. Wide Application: These screwdriver bits are compatible with a variety of devices and equipment, making them ideal for use in various applications, such as electronics repair, automotive repair, and DIY projects. Convenient Storage: Our set comes with a storage case that keeps all the screwdriver bits organized and easy to access, saving you time and effort when searching for the right size bit.