Proto J07540MT Impact Socket 3/4 in Drive 40mm 12-point

Product Description

The PROTO J07540MT is a 12-point impact socket designed for heavy-duty fastener removal and installation in professional trade and industrial maintenance applications. Built from alloy steel, it accepts a 3/4 inch drive and fits a 40mm fastener. The overall length is 2.5 inches, keeping the tool compact while delivering the wall thickness and geometry needed to handle high-torque impact wrench output without cracking or rounding. This socket is suited for mechanics, millwrights, and maintenance technicians who rely on impact-rated tooling for structural fasteners, heavy equipment, and industrial assemblies.

This socket is used with 3/4 inch drive pneumatic or electric impact wrenches in automotive, construction equipment, and industrial maintenance settings. The 12-point configuration engages fasteners at multiple positions, making it useful in tight or awkward access conditions where precise socket alignment is difficult. It is packaged and sold as a single unit, making it a practical replacement or addition to an existing socket set.

Key Features

• 3/4 inch drive fits standard 3/4 inch impact wrenches and breaker bars
• 40mm socket size for metric heavy-duty fasteners
• 12-point design allows engagement at 30-degree intervals for versatile positioning
• Alloy steel construction rated for impact tool use
• 2.5 inch overall length provides a compact profile for varied access conditions

Compatibility

Designed as an OEM-style replacement or standalone impact socket compatible with 3/4 inch drive impact wrenches, breaker bars, and torque multipliers accepting standard square drive tooling.

Installation Notes

This socket is installed and removed by hand onto the drive anvil of a 3/4 inch impact wrench or breaker bar. Verify the retaining pin or hog ring is secure before use to prevent the socket from ejecting under load. Inspect the socket for cracks or deformation before each use — do not use damaged impact sockets. Impact sockets are not rated for use with standard ratchets in high-torque applications.