Made of S2 Steel - Sturdy and Wear-ResistantThe 11-piece 1/4" Long Torx Screwdriver Bit Set is made of high quality S2 steel, 6.35mm/1/4 " Hex, which is shockproof and strong , very wear-resistant is.Magnetic body of the screwdriver setThe whole body of the screwdriver set is magnetic, when installing the bits can be easily attached to screws, electric screwdrivers, manual screwdrivers, electric drills and other tools, it makes it easier to attach or remove screws, improving your work efficiency.T6-T40 Shank 100mm Long Hexagon100cm length, internal hollow design makes it more labor-saving and convenient.It's sizes T6 T7 T8 T9 T10 T15 T20 T25 T27 T30 T40 to meet your different needs, compatible with electric screwdrivers, hand screwdrivers, electric drills, pneumatic drills, cordless drills, impact drills ion, etc.Torx bits and hex bits with Ku Gel headThe drill can be moved within 25, suitable for use in small spaces. The top has a non-slip hexagonal handle design, which is easier and more convenient to use.Utility application too wideSuitable for professional maintenance personnel, computer maintenance, computer maintenance. cameras, glasses maintenance, instruments maintenance, manual electric screwdriver.