This 1/4" Drive Combo SAE & Metric Socket Set from Ingersoll Rand (SK2C10) includes 5 SAE and 5 Metric sockets. The sockets have impact grade toughness, and are designed for high torque applications. The forged chrome-molybdenum steel for high strength durability. The laser-etched size labeling makes each socket easier to identify so you can get the job done faster. Set of 10 sockets (5 SAE and 5 Metric) Impact grade toughness, designed for high torque applications Forged chrome-molybdenum steel for high strength durability Laser-etched size labeling clearly identifies each size, to get the job done faster Electro-phosphate finish for a sleeker look and higher visibility