Proto J10066L Impact Socket 1 in Drive 4-1/8 in 6-point

Product Description

The PROTO J10066L is a heavy-duty impact socket designed for use with 1 inch drive impact wrenches and ratchets. Built from alloy steel, this 6-point hex drive socket measures 4-1/8 inches across and has an overall length of 6-3/4 inches, making it suited for deep-reach fastener applications. At 15.26 pounds, the J10066L is a substantial tool built for high-torque industrial and commercial use. It is intended for professional mechanics, millwrights, heavy equipment technicians, and industrial maintenance trades who require reliable performance under sustained impact loads.

This socket is used in heavy-duty maintenance and repair settings where large-format fasteners require consistent torque delivery. Typical applications include industrial machinery assembly, heavy equipment service, structural fastener work, and plant maintenance. The 6-point design concentrates drive force on the flat faces of a hex fastener, reducing the risk of rounding under high-torque impact conditions. The 6-3/4 inch overall length provides access to recessed or deep-set fasteners that shorter sockets cannot reach.

Key Features

• 1 inch drive size for use with heavy-duty impact wrenches and ratchets
• 4-1/8 inch socket size for large-format hex fasteners
• 6-point hex drive geometry reduces fastener rounding under impact
• 6-3/4 inch overall length for deep-reach fastener access
• Alloy steel construction for high-torque impact service

Compatibility

Designed for use with 1 inch drive impact wrenches, torque multipliers, and ratchets. Compatible with standard 1 inch square drive tooling used in industrial and heavy equipment maintenance applications.

Installation Notes

Always power down or de-energize equipment before servicing fasteners on mechanical assemblies. Confirm the socket is fully seated on the drive anvil before applying torque. Impact sockets are designed exclusively for use with impact wrenches and should not be substituted with standard chrome hand-tool sockets under impact loads. Inspect the socket for cracks or deformation before each use and remove from service if damage is found.