Feature:* Optional Type: PH0, PH1, PH2, PH3.* These screwdrivers have a magnetic design.* These screwdrivers are made of S2 alloy steel, which is commonly used in high hardness equipment.* These bits fit for electric screwdrivers, hand screwdrivers, electric drills, pneumatic drills and so on.* Easy to install on the screwdriver, double eye handle on the sides of the shank;* A great replacement for the missing one, bent or broken screwdrivers. Specifications:Product Name: Screwdriver BitMaterial: S2 Stainless SteelColor: BrownSurface Treatment: SandblastingOverall Length: 25mm/0.98 inchShank Size: Hex 1/4-Inch (6.35mm)Optional Type: PH0, PH1, PH2, PH3Suitable for: Electric Screwdrivers, Handheld Screwdrivers, Electric Drills, Air Drills and so onQuantity: 12pcs/setPackage Contents:12 x Screwdriver BitNote:1. Transition: 1cm=10mm=0.39 inch.2. 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.3. Please allow slight manual measurement deviation for the data.