• 1/2" Drive 12 Point Standard Metric Socket 20mm
• Off-corner loading design reduces fastener rounding
• Chamfered opening quickly guides fasteners into socket
• Hard stamped size markings
• Double line (SAE) and knurled (metric) ring help easily identify standard and metric sockets
• Bright, full polish chrome finish easily wipes clean and resists corrosion
• Meets or exceeds ASME specifications