SKT HEX BIT LNG 3/8DR 4MM

• 3/8 Drive Long Length Hex Bit Metric Socket 4mm• Long 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• Meets or exceeds ASME specifications