Milwaukee Tool 49-66-6516 Impact Socket 1 in Drive

Product Description

The MILWAUKEE TOOL 49-66-6516 is a standard-length impact socket designed for heavy-duty fastening applications in mechanical, industrial, and construction trades. Built with a 1 inch square drive and a 1-3/4 inch, 6-point hex opening, this socket delivers reliable torque transfer when paired with 1 inch drive impact wrenches. The steel construction with a black phosphate finish resists corrosion and reduces glare in the field. Non-sparking properties make it suitable for use in environments where ignition risk is a concern. At 5.42 pounds, the socket is built for sustained use under high-torque conditions.

This socket is intended for use in industrial maintenance, heavy equipment service, structural bolting, and fleet repair applications where 1 inch drive tooling is standard. The 6-point design maximizes contact with fastener flats, reducing the risk of rounding under impact load. It is appropriate for both shop and field use by licensed mechanics, ironworkers, and heavy equipment technicians working with large hex fasteners.

Key Features

• 1 inch square drive fits standard 1 inch drive impact wrenches
• 1-3/4 inch, 6-point hex opening maximizes contact and reduces fastener rounding
• Non-sparking construction suitable for use in ignition-sensitive environments
• Black phosphate finish provides corrosion resistance and low glare
• Standard length profile for general-purpose fastening tasks
• Steel construction rated for high-torque impact use

Compatibility

Designed as an OEM-style replacement and general-use impact socket for 1 inch drive impact wrenches requiring a 1-3/4 inch hex opening.

Installation Notes

Install and remove using a 1 inch drive impact wrench or breaker bar. Ensure the socket is fully seated on the drive anvil and fastener before applying torque. Power down or de-energize equipment before servicing fasteners on electrical or mechanical assemblies. Inspect the socket for cracks or deformation before each use and retire any damaged socket immediately.