Action: Tools for ProfessionalsAction impact sockets are specifically engineered for professional use with impact tools. Action employs the best design, material, processes and quality control in the industry.Action impact sockets are made of the best material (chrome-molybdenum alloy steel) to meet the extreme requirements that professional users require from their tools. Action uses a drop forge process to form their sockets followed by precise head and surface hardening treatments to deliver unsurpassed material strength, hardness and superior surface durability.Action impact sockets are available in every popular drive, size and configuration including: 1/4", 3/8", 1/2", 3/4", 1", 1-1/2" and 2/1/2" drives.