WONAIER 11Pcs Security Torx Bits Set S2 Aolly Steel Magnetic Screwdriver Bit Set 4inch 14 Hex Shank Impact Driver Drill Bits Sets T6T40

S2 alloy steel Tamper proof security bit set are made of S2 alloy steel hardness is as high as HRC60 high temperature quenching harder and more durable than ordinary S2 steel nickelplated surface antirust and anticorrosion High Concentricity Manual alignment The security torx bits are straight and concentric effectively reduce the swing of the bit 11 Sizes T6 T7 T8 T9 T10 T15 T20 T25 T27 T30 T40 11pcs tamper proof torx bit set can meet your different needs our allground bits are not easy to wear and make small sizes more durable Strong Magnetic Bits The star screwdriver bits have a powerful magnet which can fit screw tightly without slipping and improve your work efficiency Industrial Grade Each edge can accurately lock the screws without damaging the screws and the screwdriver head best for Industrial application 14 hex shank fit for electric screwdrivers hand screwdrivers electric drills air drills and so forth.