Stanley 97-125 11 Piece 1/2-Inch Drive SAE Deep Impact Socket Set 6 pt Socket design Chrome vanadium steel construction Black powder coat industrial finish Includes Case/Organizer with handle . Includes: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 in. Limited Lifetime Warranty 6 pt Socket design Black powder coat industrial finish Helps reduce fastener wear without contact with the outer 5% of the fastener Helps reduce slipping on frozen or rusted fasteners Impact sockets are made of alloy steel for strength and durability, then heat-treated to balance strength and hardness Socket wall thickness is optimized to provide strength while retaining ample access to restricted fasteners