SAE impact socket set covers essential sizes: 1/4-Inch, 5/16-Inch, 3/8-Inch, 7/16-Inch, 1/2-Inch, and 9/16-Inch;Engineered with optimized wall thickness and precision hex pockets to securely grip fasteners and provide quick access;Convenient carabiner attachment lets you secure the socket sleeve to backpacks, tool bags, or belts for instant access and improved job site productivity;Industry-standard color-coded painted rings and bold stamped size markings deliver lasting durability and instant socket size identification;Superior cold forged, heat treated Cr-Mo steel construction provides impact-rated strength designed to withstand high-torque jobs;Socket sleeve features a mechanical grip system around the color band for secure socket retention; easy removal for rapid socket changes