Milwaukee Tool 49-66-6421 Impact Socket 3/4 in 46mm 6-pt

Product Description

The MILWAUKEE TOOL 49-66-6421 is a 3/4 inch drive, 46mm impact socket built for heavy-duty fastening applications in trade and industrial environments. Featuring a 6-point hex drive geometry, this standard-length socket is manufactured from steel with a black phosphate finish that resists corrosion and reduces glare. The non-sparking design makes it suitable for use in environments where ignition hazards are a concern. Electricians, pipefitters, millwrights, and mechanical contractors working in petrochemical, utility, or industrial settings will find this socket appropriate for high-torque impact wrench use.

This socket is intended for use with 3/4 inch drive impact wrenches in both residential and commercial/industrial applications. Standard length makes it a practical choice for general fastener access where deep-reach clearance is not required. The 46mm socket size is commonly encountered in large mechanical assemblies, structural steel connections, heavy equipment, and industrial piping flanges. The non-sparking classification makes it appropriate for classified or potentially flammable work areas per applicable safety codes.

Key Features

• 3/4 inch drive interface compatible with standard 3/4 inch impact wrenches
• 46mm 6-point hex socket for positive engagement and reduced fastener rounding
• Non-sparking construction suitable for hazardous or flammable environments
• Black phosphate finish for corrosion resistance and low surface glare
• Steel construction rated for high-torque impact tool use
• Standard length profile for general-access fastening tasks

Compatibility

Designed as an OEM-style replacement and standard 3/4 inch drive impact socket compatible with 3/4 inch drive impact wrenches and torque multipliers used in industrial and mechanical service applications.

Installation Notes

Installation should be performed by qualified tradespeople familiar with impact tooling and applicable safety requirements for the work environment. Always ensure the impact wrench is powered off and disconnected from its air or electrical supply before changing sockets. Verify the socket is fully seated on the drive anvil and the retaining pin or ring is secure before applying torque. In classified hazardous locations, confirm that all tools and accessories in use meet the applicable spark-resistance requirements of the work site safety plan.