The Craftsman 1/2 inch socket， 12 point 1/4 inch drive sets the standard. This is an open stock socket that is part of a huge selection of both standard and metric tools and accessories available at Sears. The Laser-etched size marking makes it easy to locate the right socket for the job. Great for working in low-lit or greasy environments and the permanent marking resists chipping， fading and corroding. The 12 point configuration allows you to work in cramped areas where turning capacity is limited.