Bosch 2610058763 ITDSO12V10 10-Piece Impact Tough™ Deep Well Socket Set for 1/2" Drive - Bosch Impact Tough™ Deep Well 1/2" Sockets feature torque-absorbing construction and have been designed to work with 1/2" impact wrenches. This impact-rated socket absorbs torque peaks to reduce stress on the fastener. It is enhanced to handle a new generation of higher torque impact wrenches. It features a through hole and O groove to provide a better connection with wrenches featuring a pin or a friction ring. Each socket is made of forged steel to reduce breakage, and it includes laser-etched markings that are easy to read and won’t rub off with repeated use. The set includes a 1/4 " hex to 1/2" socket adapter and 9 deep well sockets: (1) 7/16", (1) 1/2", (1) 9/16", (1) 5/8", (1) 11/16", (1) 3/4", (1) 13/16", (1) 7/8" and (1) 15/16".