Milwaukee Tool 49-66-6403 Impact Socket 3/4 in 28mm 6-pt

Product Description

The MILWAUKEE TOOL 49-66-6403 is a 3/4 inch drive, 28mm impact socket built for high-torque fastening applications. It features a 6-point hex drive geometry that grips fastener flats rather than corners, reducing rounding under impact load. Constructed from steel with a black phosphate finish, this standard-length socket resists corrosion and wear in demanding jobsite conditions. The non-sparking designation makes it suitable for use in environments where ignition risk is a concern. At 1.54 pounds, it is sized for professional-grade impact wrenches used by mechanical, industrial, and heavy equipment trades.

This socket is intended for use with 3/4 inch drive impact wrenches in commercial, industrial, and heavy-duty maintenance applications. Standard length construction suits most accessible fastener locations on heavy equipment, fleet vehicles, structural assemblies, and large mechanical systems. The 28mm size fits metric fasteners common in European and Asian equipment platforms as well as modern domestic machinery. Trades including diesel mechanics, millwrights, and industrial maintenance technicians are the primary users.

Key Features

• 3/4 inch drive size for use with full-size impact wrenches
• 28mm socket size for metric hex fasteners
• 6-point contact geometry reduces fastener rounding under high torque
• Non-sparking construction rated for use in ignition-sensitive environments
• Black phosphate steel finish for corrosion and wear resistance
• Standard length profile fits most accessible fastener locations

Compatibility

Designed as an OEM-style replacement and standard 3/4 inch drive impact socket compatible with 3/4 inch drive impact wrenches and ratchets accepting standard square drive tooling.

Installation Notes

Impact sockets should be installed and removed by qualified mechanical trades familiar with torque tooling and impact driver operation. Always verify the socket is fully seated on the drive anvil before applying torque. Inspect the socket for cracks or deformation before each use and remove from service if damage is found. Do not use impact sockets with non-impact hand ratchets under sustained high-torque conditions beyond the tool rating.