These Draper HI-TORQ® 6-point deep impact sockets are forged from hardened chrome molybdenum. Black phosphate finish for corrosion protection. Includes sizes 10, 11, 12, 13, 14, 16, 17, 19mm. For use with electric or pneumatic impact wrenches with a 3/8" drive. Supplied inside a sturdy plastic storage case with metal hingle and buckle. Features & Benefits:• Manufactured from chrome molybdenum steel, chemically blackened for corrosion protection• 6-point Draper Hi-TORQ® deep impact sockets• For use with electric or pneumatic impact wrenches with a 3/8" drive• Sizes 10, 11, 12, 13, 14, 16, 17, 19mm• Supplied inside a sturdy plastic storage case with metal hinges and buckleContents:1 x Draper HI-TORQ® Metric Deep Impact Socket Set, 3/8" Sq. Dr. (8 Piece)