Chrome vanadium socket with hardened and tempered Trx bits. Includes 1/2″ drive socket, Trx x 30mm: T20, T25, T30, T40, T45, T50 and T55. Trx x 75mm: T20, T25, T30, T40, T45, T50 and T55. Chrome vanadium socket with hardened and tempered Trx bits. Includes 1/2″ drive socket, Trx x 30mm: T20, T25, T30, T40, T45, T50 and T55. Trx x 75mm: T20, T25, T30, T40, T45, T50 and T55.