1/2" Drive TORX - Star Bit Set - 15-Piece Long & Short Bits Pro-grade set of TORX / star bits Ultra-Strong Heat Treated Chrome Vanadium Steel 15-Piece Set includes 1/2" drive adapter socket 1.25" (30mm) length: T10, T15, T20, T25, T30, T40 and T45 2.75" (70mm) length: T20, T25, T30, T40, T45, T50 and T55