Ingersoll Rand 6-point impact sockets are built of top quality materials for impact-grade toughness in high-torque applications. Top quality means superior performance and durability. The perfect solution for everyday tightening and loosening problems. Drive size/type: 1/2-inch square. Socket depth: standard. Kit includes SAE and metric flip socket sizes: 3/4” x 13/16” and 19mm x 21mm, (1) 3” extension, and a plastic storage case for organization and easy portability.