Details:* * These long Phillips screwdriver bits are made of S2 alloy steel, which is commonly used in high hardness hardware.* Magnetic bits can be fixed securely on screwdrivers * Do not rotate screws that do not match the dimensions to avoid damage to screws and drill bits * Color: Silver(As pictures show)* Material: S2In case of Lloy stainless steel * Head Type: for Cross head* Screwdriver length: 150mm(Approx.).* Stem type: Hex* Dia. of Shank: 6.35mm / 1/4"(Approx.).* Bit Diameter: 3.0mm,4.0mm,4.5mm,4.5mm,5.0mm,6.0mm(Approx.). Package Contents: 6*Cross ScrewdriversNote: The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.