1.Factory production, manufacture price 2.45# carbon steel 3.Corrosion resistant head of screwdriver: 1.slotted magnetic screwdriver2.chrome vanadium or high-carbon steel material are available3.chrome or nickel plated4.Size: 5*160mm,6*190mm,6*38mm,6*100mm,6*125mm,6*150mm,6*200mm,6*250mm are available Handle of screwdriver:1.PP /TPRmaterial2.any color can be selected