LONKER 6pcs Magnetic Inner Hexagon Hex Head Drill Screwdriver Bits Set with 1 4 Inch Hex Shank 150mm Length Cross Screwdriver Kit Tools

S2 high quality steel: Good material does not need to make the surface decoration through the exterior decoration, the quality of the batch is to look at the intrinsic material. Application: It can be used with electric screwdriver, manual screwdriver, electric drill, group general tools. Specification: ?Materials: S2 steel ?Type of head: Cross ?Type of shank: 6.35mm / 1/4 inch hex ?Length: 150 mm(4 inch) ?Size: 3PH1, 4PH1, 4.5PH1, 4.5PH2, 5PH2, 6PH2 Package Included: 6 x 150mm Magnetic Cross Screwdriver Bit