44Pc 3/8 Dr 6 Point Standard & Deep Impact SAE/Metric Socket Set w/FREE 13Pc 3/8 Dr Metr. Socket Set Made from Chrome Molybdenum Alloy Steel (Cr-Mo) for exceptional strength and durability. Off-Corner loading design for reduced fastener rounding. Black oxide coating for corrosion resistance. Parallel neck down design on 8, 9, 10, 11mm sizes for improved access to restricted fasteners. High-Visibility etched markings for quick size identification. Secondary hard stamping. Includes blow mold case with reinforced steel hinges and steel buckles for strength and security. w/FREE 13 Pc. 3/8IN Drive 6 Point Deep Impact Metric Socket Set 84916IS No -