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The PROTO J77417MP is a 17mm, 6-point impact socket designed for 3/8 inch drive impact tools used in mechanical, industrial, and heavy-duty service applications. Built from alloy steel, it delivers the toughness required to handle high-torque impact loading without cracking or rounding fasteners. The hex drive style and 6-point contact geometry maximize grip on fastener flats, reducing the risk of slippage under load. At 2-3/32 inches overall length, it fits into standard under-hood and chassis work without excessive reach. This socket meets ASME B107.2 standards, making it a reliable choice for professional mechanics, fleet technicians, and maintenance trades.
This impact socket is suited for automotive, fleet, and light industrial service work where a 3/8 inch drive impact wrench or ratchet is the primary tool. The 17mm size covers a wide range of common fasteners found on passenger vehicles, light trucks, and equipment. Its universal style designation makes it a practical addition to any professional socket set where impact-rated tools are required for daily use.
Designed as an OEM-style impact socket for use with 3/8 inch drive impact wrenches, air ratchets, and hand ratchets in professional service environments.
Impact sockets should only be used with impact-rated drive tools. Inspect the socket for cracks or deformation before each use and remove from service if damage is found. Always ensure the socket is fully seated on the fastener before applying torque to prevent slippage or fastener damage. Secure the retaining ring or pin-and-ring detent before use to prevent socket ejection under load.
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