Feature:1. The strong magnetic screwdriver bit can easily hold the screw, which makes your working much easier.2. This set has star, square head, cross and slot screwdriver bits in various sizes to satisfy your work needs.3. Enables wide application in pneumatic screwdriver, electric screwdriver, rechargeable drill, very practical.4. Through fine workmanship, the screwdriver bit has no burrs, and the storage box also simplifies carrying.5. Adopting good S2 steel, all the screwdriver bits are not easy to deform, and very durable for long use.Specification:Item Type: Screwdriver Bit Material: S2 Tool SteelSurface Treatment: Nickel PlatingStar Screwdriver Bit Specifications: T8, T10, T15, T20, T25, T27, T30, T40Square Head Screwdriver Bit Specifications: 1.0, 2.0, 2.5, 2.7, 3.0, 4.0, 5.0Cross Screwdriver Bit Specifications: 3.0PH0, 3.0PH1, 4.0PH1, 4.5PH1, 4.0PH2, 4.5PH2, 5.0PH2, 6.0PH2Slot Screwdriver Bit Specifications: 1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0Suitable For: Pneumatic screwdriver, electric screwdriver, rechargeable drill. .Package List:8 x Star Screwdriver Bit7 x Square Head Screwdriver Bit8 x Cross Screwdriver Bit7 x Slot Screwdriver Bit1 x Storage Box