The Stark 1 in. Duo Combination SAE and Metric Deep Impact Socket Set is engineered for maximum strength and reliable performance on the toughest heavy-duty jobs. Designed to handle the extreme torque of high-force impact wrenches, this professional-grade set includes essential SAE and metric deep socket sizes-ideal for servicing trucks, tractors, industrial equipment, and large machinery.Each socket is drop-forged and heat-treated from premium Cr-Mo (chromoly) steel to deliver exceptional durability, fracture resistance, and long-lasting torque strength. High-visibility laser-etched size markings allow for quick and easy identification, even in low-light or demanding work environments.For added convenience, the set comes packaged in a rugged, heavy-duty storage case that keeps every socket organized, protected, and ready for transport. Built to withstand jobsite conditions, this impact socket set is a dependable choice for mechanics, technicians, and industrial maintenance professionals.