The Wera 05024179001 TORX KEY SET W/HOLDING FUNCTION 10PC is a set of 10 torx keys with a holding function that allows the user to engage and disengage the key from the screw without having to continually tighten and loosen the head of the screw. The set includes seven Torx keys (T6, T7, T8, T9, T10, T15, T20) and three tamperproof Torx keys (T7H, T8H, T10H). The keys are made from high-grade vanadium steel and feature a chrome finish for enhanced strength and corrosion resistance. The keys are also designed with a unique ergonomic design that provides maximum comfort and torque, and the free-turning collar enables easy rotation and precise alignment with the screw. The set is ideal for use in a variety of applications, such as machine and automotive repair, electronics assembly, and general DIY projects.