Proto J10055ML Impact Socket 1 in Drive 55mm 6-point

Product Description

The PROTO J10055ML is a heavy-duty impact socket designed for use with 1 inch drive impact wrenches. It accepts a 55mm hex fastener with a 6-point contact geometry that distributes torque evenly across the fastener flats, reducing rounding and slippage under high-torque conditions. Constructed from alloy steel, the socket measures 4.5 inches overall length and is built to handle the repeated shock loads generated by pneumatic and hydraulic impact tools. This socket is suited for industrial maintenance, heavy equipment service, and commercial vehicle repair where large-format fasteners are common.

This socket is intended for professional use in settings that require large-drive impact tooling, including fleet maintenance shops, mining and construction equipment service, agricultural equipment repair, and industrial manufacturing facilities. The 1 inch drive interface pairs with full-size impact wrenches used when working on wheel hubs, axle nuts, large structural bolts, and heavy machinery fasteners. Its 6-point design makes it appropriate for high-torque applications where fastener integrity must be preserved.

Key Features

• 1 inch drive size for use with full-size impact wrenches
• 55mm socket size accommodates large hex fasteners
• 6-point hex drive geometry reduces fastener rounding under load
• Alloy steel construction provides strength and impact resistance
• 4.5 inches overall length for reach in standard impact applications

Compatibility

Designed for use with 1 inch drive impact wrenches and torque multipliers in heavy-duty industrial, fleet, and equipment service applications.

Installation Notes

This socket is intended for use by qualified mechanics and service technicians working with 1 inch drive impact equipment. Always verify the socket is fully seated on the fastener and impact tool anvil before applying torque. Inspect the socket for cracks or deformation before each use and remove from service if damage is found. Do not use impact sockets with hand-drive ratchets or breaker bars, as impact-rated tools and standard drive tools have different metallurgical requirements.