Neiko 02392A 3/4" Drive Jumbo Shallow Impact Socket Set, 8 Piece | SAE (2-1/16" - 2-1/2") | Cr-Mo Steel Designed for both pneumatic and electric impact wrenches, suitable for large trucks and heavy machinery Made of extremely durable and long lasting premium chrome molybdenum steel construction with corrosion-resistant black phosphate finish Lobular 6-point design grips the flat sides of fasteners, rather than the corners to prevent stripping and rounding off of bolts High-contrast visibility laser-etched size markings allow easy reading in low light settings Includes eight large SAE socket sizes (2-1/16, 2-1/8, 2-3/16, 2-1/4, 2-5/16, 2-3/8, 2-7/16, 2 inch) in a blow-molded carrying case for easy storage