Milwaukee Tool 49-66-6417 Impact Socket 3/4 in 42mm

Product Description

The MILWAUKEE TOOL 49-66-6417 is a 3/4 inch drive, 42mm, 6-point impact socket built for high-torque applications in the trades. It features a hex drive style and standard length profile, constructed from steel with a black phosphate finish for corrosion resistance. The non-sparking design makes it suitable for use in environments where ignition hazards are a concern. Licensed electricians, pipefitters, and industrial mechanics reach for sockets like this when working with large fasteners on mechanical equipment, flanged connections, and structural assemblies where an impact wrench is the tool of choice.

This socket is suited for heavy-duty professional use in residential, commercial, and industrial settings. The 42mm size and 3/4 inch drive make it a common fit for large-diameter fasteners found on HVAC equipment, pumping systems, pipe flanges, and structural steel. It is designed to withstand the repeated shock loads delivered by 3/4 inch drive pneumatic and electric impact wrenches without cracking or rounding out.

Key Features

• 3/4 inch drive hex style for use with standard 3/4 inch impact wrenches
• 42mm 6-point socket profile reduces fastener rounding under high torque
• Non-sparking construction rated for use in ignition-sensitive environments
• Black phosphate finish provides corrosion resistance in field conditions
• Standard length profile for general-access fastener applications
• Steel construction engineered for repeated impact wrench shock loads

Compatibility

Designed as an OEM-style replacement or direct-use impact socket compatible with standard 3/4 inch drive impact wrenches and drive accessories.

Installation Notes

Installation and use should be performed by qualified tradespeople familiar with impact tooling and torque requirements for the specific fastener application. Always confirm the socket is fully seated on the drive anvil and the fastener before applying torque. Do not use impact sockets with hand-drive ratchets, as impact-rated sockets are not designed for that loading profile. Follow applicable safety codes and site protocols when working in environments where the non-sparking rating is required.