100% brand new and high quality Materials: S2 alloy steel Color: as shown in pic Color: as shown in pic Those Long for Cross Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware with high hardness. Magnetic bits can be firmly fixed on screwdrivers. Specifications: Type of Head: for Cross Head Length of Screwdriver: 150mm Type of Shank: Hex Dia. of Shank: 6.35mm / 1/4" Dimensions: Size PH1 PH1 PH1 PH2 PH2 PH2 Bit Diameter Φ3.0 Φ4.0 Φ4.5 Φ4.5 Φ5.0 Φ6.0 Length (mm) 150 150 150 150 150 150 Quantity:6Pcs Notes: PH1 is suitable for major and small appliances; PH2 is suitable for household screws and major appliances. Do not turn the screws with unmatched size,in case get both screw and bit damaged. Please allow a bit manual measuring errors.