Milwaukee Tool 49-66-6551 Impact Socket 1 in Drive

Product Description

The MILWAUKEE TOOL 49-66-6551 is a deep 6-point impact socket designed for use with 1 inch drive impact wrenches and compatible adapters. Built from forged impact steel with a black phosphate finish, this socket handles high-torque applications where standard chrome sockets would fail. It accepts a 1-3/16 inch hex fastener and measures 2.28 inches in overall length. The non-sparking construction makes it suitable for environments where ignition risk is a concern. Stamped and ink-filled diameter markings resist wear, keeping the size readable after heavy field use. Licensed HVAC technicians, pipefitters, plumbers, and industrial mechanics reach for this socket when breaking loose large fasteners on mechanical equipment.

This socket is used in heavy-duty trade and industrial applications requiring a 1 inch drive tool setup. Its deep length and 6-point profile suit large hex fasteners found on flanges, structural connections, and mechanical equipment assemblies. The non-sparking characteristic makes it appropriate for use in environments with flammable materials or regulated atmospheres, such as gas utility, petrochemical, and HVAC mechanical rooms.

Key Features

• 1 inch drive, 1-3/16 inch socket size in a deep length configuration
• 6-point forged impact steel construction rated for high-torque impact wrench use
• Non-sparking design suitable for use near flammable or combustible materials
• Black phosphate finish provides corrosion resistance in field conditions
• Stamped and ink-filled size markings resist wear for lasting readability
• Optimized for use with 1 inch drive impact wrenches and adapters

Compatibility

Designed for use with 1 inch drive impact wrenches and adapters as a standard SAE impact socket replacement.

Installation Notes

Installation and removal should be performed by a qualified tradesperson familiar with impact tooling and torque requirements of the fastener application. Always ensure the impact wrench is powered off or disconnected before attaching or removing sockets. Verify the socket is fully seated on the drive anvil before applying torque. Follow applicable workplace safety codes and site-specific requirements when working in environments where non-sparking tools are mandated.