40. It is therefore comfortable for you to respond to your request.meet your different needs.Wide range of uses: suitable for electric screwdrivers, hand drills, etc.hand drills, cordless drills, rotary drillsair and so on.For work around the house, leisure and the car.So practical, you will make your life easier.?Stem type?Exquisite workmanship, each sideCan tighten screws accurately, no damage to the screw and screwdriver head.Professional multi-size package, hexagonal handle on edge 75mm long.With the right screwdriver bar, the more you pay less effort and you can easily screws.Product :These screwdriver bits are made of high quality S2 material, durable, anti-impact and sturdy.The magnetism allows them to attach it to a screwdriver.With cross head, you can use an electric screwdriver, a manual screwdriver, a drill, a rotary drill.air, etc.What are you waiting for?Get this kit and make your life easier.Easy to use.choose: Printedwith specifications, easy to operate.choose the one you need, easy to choose.install on your screwdriver handle.They are designed with an adjustable stem.1/4" quick change, so they work with all types of shock and rotary drivers. Most Usage: With 1/4" hex shaft, suitable for electric screwdriver, manual screwdriver,electric drill, air drill, etc. Perfect for electricians, mechanical repair work and furniture assembly. Specifications:? 2.?Head type: Torx.?Shank Type: Hexagonal.?Total length: 75 mm.?Shank Type: 6.35mm (1/4") hex? Total Quantity: 11pcs.? Size: 75mm (T6, T7, T8, T9, T10, T15, T20, T25, T27,T30, T40).Contents:11 Torx screwdriver bits. Manufacturedmade of high quality steel?The bits are made of chrome vanadium and stainless steel.S2 tools, which is sturdy and durable.The non-slip matte surface, 3-speed rotation360 degree and finger rest cane design provides additional comfort.High hardness, strong torque, can be usedfor a long period of time. Powerful function?Strong magnetic, screws can easily suck when used.With magnetic absorption, the parts adopt strong magnetism which can fix screws firmly.Get perfect placementevery time. Torx bits: there are different sizes of screwdriver heads: T6, T7, T 8, T9, T10, T15, T20, T25, T27, T30, T