DescriptionsThose Cross Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware with high hardness.Magnetic bits can be firmly fixed on screwdrivers.12 sizes a set at an inexpensive price can meet your requirements.SpecificationsMaterials: S2 alloy steelType of head: Cross / PhillipsType of shank: 6.35mm / 1/4 in. hexNet weight: (approx.) 140gDimensions:Size	  Bit Dia.	Lgth. (mm)PH00  Φ1.6	50PH0	  Φ2.0	50PH0	  Φ2.5	50PH1	  Φ3.0	50PH1	  Φ3.5	50PH1	  Φ4.0	50PH1	  Φ4.5	50PH1	  Φ5.0	50PH2	  Φ4.0	50PH2	  Φ4.5	50PH2	  Φ5.0	50PH2	  Φ6.0	50FeaturesThose bits fit for electric screwdrivers， hand screwdrivers， electric drills， air drills and so forth. NotesPH00 is suitable for precision apparatuses;PH0 is suitable for small appliances and precision apparatuses;PH1 is suitable for major and small appliances;PH2 is suitable for household screws and major appliances. Do not turn the screws with unmatched size， in case get both screw and bit damaged.Please allow a bit manual measuring errors.Package included12 x 50mm  Phillips Screwdriver Bits