7 Pc. 3/8" Drive Mid Length Hex Bit SAE Socket Set Mid-length hex bit for additional access to hard-to-reach fasteners. S2 steel insert bits offer maximum strength. Heat-treated socket bases provide lasting durability . Double line (SAE) and knurled (metric) ring help easily identify standard and metric sockets. Hard stamped size markings. Bright, full polish chrome finish easily wipes clean and resists corrosion. Includes socket rail for storage and organization. Meets or exceeds ASME specifications 82529