This US PRO 4-piece Japanese Industry Standard Screwdriver Set features JIS standard screwdrivers, recommended for working with Japanese products and vehicles that use JIS standard screws to prevent screw damage. Constructed from chromium-vanadium steel, these screwdrivers offer superior strength, durability, and resistance to abrasion, oxidation, and corrosion. The set includes sizes JIS PH3 x 150mm, JIS PH2 x 100mm, JIS PH1 x 75mm, and JIS PH2 x 38mm.