•Chrome molybdenum alloy steel (Cr-Mo) for exceptional strength and durability •Off-corner loading design reduces fastener rounding •Manganese phosphate finish to resist corrosion •High-visibility laser-etched markings provide quick size identification •Secondary hard stamped size markings •Meets or exceeds ASME specification •Includes blow mold case for storage and organization •Pin hole can be used with pin and O-ring for secure socket retention •Standard “shallow” socket depth design