Description Made of high strength S2 alloy steel, wear resistant, durable and long lasting. 14pcs Torx screwdriver bits (set of 2). Head type: Torx Star 5 Point. Rod type: 6.35mm(1/4) hex.7 Sizes: T10, T15, T20, T25, T27, T30, T40. Total length: 1.97/50mm in length. All torx bits can meet your different needsWide application use: can be used for electric screwdrivers, hand screwdrivers, electric drills, air drills, etc. Strong magnetic hex shank can suck screws easily when it is used - Note: Dont twist the screws with unmatched size, in case the screw and drill bit will be damaged. Note: The data are all manual measurement, please allow 1-3cm error, due to The light and display difference, there will be some color difference, depending on the physical object received.