SwissGrip Stubby screwdriver for tire valves open and close valves and loosen stuck jams for standard valves on cars, trucks, motorbikes, bicycles, electric cars and air-conditioning units precise, true-to-size tips, perfect fit in the screws the short blade is ideal for use in confined spaces convex handle with soft surface, pleasant grip and high torque transmission high-quality materials used, resistant to solvents, oils, acids and salts special alloy based on spring steel, exceptional elastiメーカー公称