Excellent MaterialTorx screwdriver sets, high quality steel, , this batch of head using high quality steel, batch head surface for steel material color,from inside to outside are the same.Good material does not need to make the surface decoration through the exterior decoration, the quality of the batch is to look at the intrinsic material. Powerful Functionsecurity professional screwdriver hex shank drills can be easily keep screws stuck to them,can improve your work efficiency; Each edge of the torx bit can be accurately locked screws, no damage to the screw and the screwdriver head. Wide Using AppliacitonSecurity torx bits can be used to repair cars, motorcycles, computers, household appliances, electronic products, etc. It will help you deal with some problems in daily life, which will be very convenient and necessary. Can be used with any 1/4" hex shank electric screwdriver, manual screwdriver, electric drills, group general tools, etc. Range of ApplicationScrewdrivers torx bits set are security tamper proof type. Tamper proof torx bit set packed in a plastic screwdriver holder storage bar, for convenient to store and carry. What You Receive Professional multi size package, hexagonal handle on the edge of 6.35mm.75mm length. Size: T6,T7,T8,T9,T10,T15,T20,T25,T27,T30,T40.