The 720TX Series of sockets from Beta Tools have male Torx® (6-point star) drives to fit standard Torx screws. The black oxide finish quickly identifies them as being suitable for use with impact drivers. They accept any standard 1/2" square drive tool (sold separately).
This set of 6 sockets includes the following Torx sizes:
T30, T40, T45, T50, T55, T60