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The PROTO J77279P is a 6-point impact socket designed for use with 3/8 inch drive impact wrenches and rattle guns. Built from alloy steel, it accepts a 3/4 inch hex fastener and measures 2-3/32 inches overall length. The universal style fits standard impact drive applications and meets ASME B107.2 specifications. This socket is suited for professional mechanics, HVAC technicians, plumbers, and electricians who drive 3/4 inch hex fasteners with pneumatic or cordless impact tools in tight service environments.
The J77279P is appropriate for residential and commercial service work where a 3/8 inch drive impact socket in the 3/4 inch size is required. Typical applications include equipment installation, mechanical fastening on HVAC systems, plumbing rough-in, and electrical panel or equipment mounting. The 6-point design reduces fastener rounding under high-torque impact conditions, making it a reliable choice for repetitive production work or field service calls.
Designed as an OEM-style replacement or direct-use impact socket compatible with 3/8 inch drive impact wrenches and hand ratchets requiring a 3/4 inch 6-point hex socket.
Install and remove using a 3/8 inch drive impact wrench, cordless impact driver, or hand ratchet. Always verify the socket is fully seated on the fastener before applying torque. Do not use impact sockets with standard hand-tool extensions not rated for impact use. Inspect the socket for cracks or deformation before each use and replace if damage is found.
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