This set includes four of the most popular larger Torx sizes for automotive applications. The two smaller bits are 3/8" drive, and the two larger bits are 1/2" drive. The set includes T-47, T-55, T-60, & T-70 in a convenient holder. Available Individually: 82310 T-47 Super Torx Bit 82320 T-55 SUPER TORX BIT 82330 T-60 Super Torx Bit 82340 T-70 Super Torx Bit