Made Of Alloy Steel S2 Resistant And Resistant To Wear 11 X 100Mm Long 1/4" Torx Bits Is Made Of Premium S2 Steel, 6.35Mm Hex, Which Is Impact Resistant And Tough, Very Tear Resistant. Wear.T6-T40 Hex Shank 100Mm Long 10Cm Length, Internal Hollow Design Makes It More Economical.It Comes In Sizes T6, T7, T8, T9, T10 , T15, T20, T25, T27, T30, T40 To Meet Your Different Needs, Compatible With Electric Screwdriver, Hand Screwdriver, Air Drill, Impact Driver, Etc.Magnetic Screwdriver Bits: Thanks To The Magnetization, The Screws Also Stick To The Bit And In Deeper Holes There Is No Need To Turn Or To Shake The Object To Get The Screw Out, Which Improves Your Working Efficiency.Shank Type 6.35Mm/1/4" Hex, Magnetic Long Bit In Installation Can Easily Suck Screws, Electric Screwdriver, Manual Screwdriver, Electric Drill, Group Of General Tools. The Upper Part Has A Non-Slip Hexagonal Grip Which Is Easier To Handle. Use.Wide ApplicationThis Screwdriver Bit Set Is Used For For Electric Screwdrivers, Cordless Screwdrivers; Hand Drills; Air And So On. Suitable For Professional Maintenance Professionals, Computer Maintenance, Camera Maintenance, Manual Electric Screwdriver.