Made of S2 alloy steel, durable and wear-resistant, 11pcs 100mm long 1/4" Torx bits are made of premium S2 steel, 6.35mm hex, which is impact resistant and durable, very wear-resistant. 100mm long T6-T40 hex shank 10cm length, internal hollow design makes it more economical. It comes in T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 sizes to meet your different needs, compatible with electric screwdriver, hand screwdriver, air drill, impact driver, etc. Magnetic screwdriver bits, thanks to magnetization, the screws also adhere to the bit and into the holes more deep, no need to turn over or shake the object to get the screw out, improving your work efficiency. 6.35mm/1/4" Hex Shank Type, Magnetic Long Bit in the installation can easily suck screws, electric screwdriver, manual screwdriver, electric drill, general tool group. The upper part has a non-slip hexagonal handle which is easier to use. Wide ApplicationThis screwdriver bit kit is used for electric screwdrivers, hand screwdrivers, air drills and so on. Suitable for professional maintenance professionals, computer maintenance, camera maintenance, manual electric screwdriver. Size: 100mm - 11pcs. 11 magnetic inserts to replace the electric screwdriver or electric drill. The kit contains 11 magnetic inserts made of S2 steel (a type of very strong steel) with hexagonal connection, about 10cm long. The dimensions are T6 - T7 - T8 - T9 - T10 - T15 - T20 - T25 - T27 - T30 - T40. The kit comes in a transparent soft case in a bag in which you can store it. They are extremely easy to install, they are screws compatible with all power tools, or batteries such as electric screwdrivers, hand screwdrivers, electric drills. Description: Strong magnet, good workmanship, high precision. High hardness hardware material. Magnetic bits can be firmly fixed on screwdrivers. Electric screwdriver, manual screwdriver, drill and other generic tools approved by the wind. Content: 11 Torx security screwdriver bits. Welcome to meet