• For TORX® tamper-resistant screws • Includes 7 pieces: 6 bits and 1 magnetic universal bit holder • 25 mm: TR10, TR15, TR20, TR25, TR30, TR40 • For universal use • High performance alloy steel • Zinc phosphate finish • 1/4" hex drive DIN 3126 and ISO 1173, style C 6.3 • Universal bit holder with strong magnet (style E 6.3) • The small size of the set is ideal to be carried in a pocket • In transparent carton box