A comprehensive Torx® socket bit set that enhances mechanics to work at tiny and hard to reach Torx® fasteners. Bits are made of high-grade S2 steel (carbon, silicon, manganese, chromium, molybdenum and vanadium) and finished with Zinc Phosphate for durability, while Chrome Vanadium drive sockets provide excellent rigidity for strength and top resistance to corrosion. 7 most common Torx® Bits ranging from T10 to T40 can extend your 3/8 drive tool to a new horizon. Drop forged and carefully heat-treated, they are perfectly constructed for overall bit body strength to achieve designed maximum torque. While the tips of the bits are still gentle on screw heads Schrauben Schonenderes minimizes stripping and wearing damages to bits and screws.