ACM Group – Product Listing. Impact Socket Set 3/8″ & 1/2″ Socket Set 59PCS SAE 5/16″ to 1-1/4″ and Metric 6-32mm, 6 Point Cr-Mo Alloy Steel for Auto Repair, Easy-to-Read Markings, Rugged Construction, Storage Case. Product Description. Premium Cr-Mo Alloy Steel Construction: Crafted from premium impact-grade alloy steel, our 3/8″ & 1/2″ impact socket set with Cr-Mo industrial-grade alloy steel offers exceptional enhancements in impact resistance and absorption. Through the utilization of vacuum heat treatment, the steel undergoes rapid heating and cooling processes, resulting in a polished and highly durable surface. This makes it well-suited for a wide range of operational environments. It effectively prevents bolt rounding and stripping, offering enhanced durability over traditional rounded corner designs. Clear Size Markings: The size markings on these 59pcs impact driver socket set are meticulously laser-etched and rolled, ensuring effortless identification of socket sizes even in low light conditions. Easy Storage and Portability: The set comes with a moderate-weight metal toolbox that simplifies portability and keeps your tools organized. This toolbox helps prevent scattering or loss of the tools, making it easy to store and transport them securely. Abundant Components: Includes 1/2″ SAE deep sockets – 3/8″? 7/16″? 1/2″? 9/16″? 5/8″? 11/16″? 3/4″? 13/16″? 7/8″? 15/16″? 1″? 1-1/16″? 1-1/8″? 1-1/4″; 1/2″ metric shallow sockets: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 27, 30, 32mm; 3/8″ SAE deep sockets: 5/16″? 3/8″? 7/16″? 1/2″? 9/16″? 5/8″? 11/16″? 3/4″? 13/16″; 3/8 metric shallow sockets: 6? 7? 8? 9? 10? 11? 12? 13? 14? 15? 16? 17? 18? 19mm, two extension bars and 2 adapters. About Us. Welcome to ACM Group! We offer the best prices around on high quality products. We are always working hard to ensure your package arrives as soon as possible. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We usually respond within 24 hours on weekdays.