Features, Description: 20% stronger than one-piece torxbits, this set includes nine of the most popular Torx sizes for automotive applications. The six smaller bits are 1/4 drive, and the three larger bits are 3/8 drive. The set includes T-10, T-15, T-20, T-25, T-27, T-30, T-40, T-45, T-50 includes a convenient holder.