Features and Benefits: 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 and T-50 In A Convenient Holder The T-47, T-55 and T-60 Bits Are Available Individuallya Part Of The 37600 Super Torx Set, Which Is 20 Percent Stronger Than One-Piece Torx Bits. This Is 9 Out Of 12, Of The Most Popular Torx Sizes For Automotive Applications.