Milwaukee Tool 49-66-6604 Impact Socket 1in Drive 41mm

Product Description

The MILWAUKEE TOOL 49-66-6604 is a 1-inch drive, 41mm, 6-point hex impact socket built for heavy-duty fastening applications. Constructed from steel with a black phosphate finish, it resists corrosion and stands up to repeated impact driver use. The non-sparking construction makes it suitable for environments where ignition risk is a concern. Standard length geometry keeps the socket compact for use in confined spaces. This socket is installed by licensed electricians, millwrights, heavy equipment technicians, and industrial maintenance professionals who require reliable torque transfer at high-impact cycles.

This socket fits 1-inch square drive impact wrenches and is sized for 41mm hex fasteners commonly found on heavy machinery, structural bolting, and industrial equipment assemblies. The 6-point contact pattern distributes torque evenly across fastener flats, reducing the risk of rounding under load. The black phosphate finish provides a low-glare surface and mild corrosion resistance for shop and field use. Standard length suits most open-access fastening tasks without requiring an extension.

Key Features

• 1-inch square drive compatible with full-size impact wrenches
• 41mm socket size for large hex fasteners on heavy equipment
• 6-point hex drive reduces fastener rounding under high torque
• Non-sparking construction rated for use in ignition-sensitive environments
• Black phosphate finish for corrosion resistance and low glare
• Standard length profile for direct-access fastening

Compatibility

Designed as an OEM-style impact socket for use with 1-inch drive impact wrenches requiring a 41mm 6-point hex socket.

Installation Notes

This socket is installed and used by qualified trades and maintenance technicians operating 1-inch drive impact wrenches. Always ensure the drive tool is powered down or the air supply is disconnected before changing sockets. 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, as impact-rated sockets are not designed for that loading profile.