Dual Action 10 Piece 1/2 Drive 6-Point Metric Deep Socket Set 11241002Key Features Set contains: 10, 12, 13, 14, 15, 17, 19, 21, 22, 24mm Action impact tools are made from high quality materials like chrome molybdenum alloy steel, which is drop forged and heat treated to make them strong and durable. Action impact tools undergo rigorous quality control testing to ensure they meet standards for hardness, function, and torque. Action impact tools come with a lifetime warranty against defects in materials and workmanship.