This Wiha Torx bit set offers a versatile selection of Torx head bits for use with 1/4" universal hex drivers. The set includes T5, T6, T7, T8, T9, T10 torx bits. Torx bits offer a 100% improvement in drive performance over other bit driver systems, virtually eliminating screw head cam-out. Each bit has been thoroughly hardened for the best possible wear resistance.