"The Ingersoll Rand 3/8-inch and 1/2-inch 86-piece combo standard- and deep-impact socket set is a large set that includes all the sockets you need. Ideal for automotive work to plumbing to construction. Features impact-grade toughness designed for high-torque applications. Forged chrome-molybdenum steel provides high-strength durability. Top quality means superior performance and durability. Laser-etched size labeling makes for easier identification. Heavy-duty plastic storage case for easy portability. Storage Type Plastic case, Measurement Type Standard SAE/Metric, SAE Deep Socket Size in. 5/16-1 1/4, Drive in. 3/8, 1/2, Material Type Chrome molybdenum, Metric Socket Size mm 9-27, SAE Socket Size in. 5/16-1 1/4, Specialized Pieces qty. 0, Metric Deep Socket Size mm 9-27, Point 6, Pieces qty. 86. Chrome-molybdenum steel forged for high-strength durability Large laser-etched numbers for easy reading Electro-phosphate finish"