50mm Magnetic Screwdriver Bit Set Security Tamper Proof Drill Bits 1/4" Hex Shank T5-T40 Screw Driver Ratchet Wrench Hand Tools

[Features]: 1.High quality, made with S2 alloy steel, hardness up to 60HRC. 2.Special heat treatment, super hard wear-resisting, life is twice as long as ordinary screwdriver. 3.It is an ideal industrial screwdriver widely used in industry and household. 4.Magnetic, can absorb screw, operate simple, quick operation. 5.Applicable for electric screwdriver, hand screwdrivers, electric drill, air drills etc. [Specifications]: Material: S2 Alloy Steel Type of head: Torx. Type of shank: 6.35mm / 1/4 inch hex. Size: T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30,T40.