Yakamoz 12pcs 1/4 Inch Hex Shank Magnetic Cross Phillips Screw Head Screwdriver Bits Set Torx Head Size: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 Overall Length: 3 Inch/ 75mm Type of Shank: 1/4 Inch hex Build-in strong magnetic Material: S2 Steel