Features Excellent S2 Alloy Steel Material: This cross screwdriver bit set is made of excellent S2 alloy steel material for high strength and durability. Phosphat Treatment: This set of bits is phosphated to increase the erosion resistance and coefficient of friction of the bits, making it easier to insert and extract screws and reducing the risk of slippage. Multiple Sizes: This cross screwdriver bit set has multiple sizes, which can meet your different needs of use, you can choose to use them according to your needs. Compact And Portable: This cross screwdriver bit set is small in size and light in weight, which is very convenient to carry around and use. Wide Application: This cross screwdriver bit set has a wide range of applications, and can be used in factories, repair stores, handicrafts, furniture processing and so on. Specification: Item Type: Cross Screwdriver Bit Material: S2 Alloy Steel Shank Diameter: 1/4 Inch Specification: Approx. 150mm/5.91in, Approx. 90mm/3.54in, Approx. 70mm/2.76in, Approx. 65mm/2.56in, Approx. 50mm/1.97in, Approx. 25mm/0.98in Package List:6 x Cross Screwdriver Bit Package List 6 x Cross Screwdriver Bit