Proto J7340 Impact Socket 1/2 in Drive 1-1/4 in 12-point

Product Description

The PROTO J7340 is a 12-point impact socket designed for heavy-duty fastening and removal tasks in professional trade environments. Built for use with a 1/2 inch drive impact wrench, it accepts a 1-1/4 inch fastener and measures 3.5 inches in overall length. The 12-point configuration provides more contact points around the fastener head, which can be useful when working in confined spaces with limited swing clearance. This socket is intended for use by mechanics, pipefitters, electricians, and other trade professionals who rely on impact-rated tooling for production or field work.

This socket fits standard 1/2 inch drive impact wrenches and rattle guns commonly used in mechanical, plumbing, HVAC, and industrial maintenance applications. The 1-1/4 inch size is frequently encountered on large fasteners found in equipment housings, flanged connections, structural assemblies, and utility hardware. It is suited for both shop and field use wherever a durable, impact-rated socket in this size range is required.

Key Features

• 1/2 inch drive compatible with standard impact wrenches and torque multipliers
• 1-1/4 inch socket size for large fastener applications
• 12-point design for increased contact positions around fastener head
• 3.5 inch overall length provides reach in standard access situations
• Impact-rated construction intended for use with pneumatic or electric impact tools

Compatibility

Designed as an OEM-style replacement or direct-use impact socket for 1/2 inch drive impact tools requiring a 1-1/4 inch, 12-point socket.

Installation Notes

Impact sockets should only be used with impact-rated drive tools — never substitute standard chrome hand-tool sockets with impact wrenches. Ensure the socket is fully seated on the drive anvil and the retaining pin or ring is engaged before applying torque. Inspect the socket for cracks, deformation, or worn points before each use and remove from service if damage is found.