Proto J10066 Impact Socket 1 in Drive 4-1/8 in 6-point

Product Description

The PROTO J10066 is a 1-inch drive, 6-point hex impact socket designed for heavy-duty fastener work in professional trade and industrial environments. Built for use with 1-inch drive impact wrenches, this socket accepts a 4-1/8 inch hex fastener and measures 5.5 inches overall in length. The 6-point contact geometry reduces fastener rounding under high-torque impact loads, making it a reliable choice for mechanics, millwrights, pipefitters, and other tradespeople working on large fastener applications. At 15.26 pounds, this is a substantial, industrial-grade tool suited for heavy equipment, structural, and large-bore piping work.

This socket is used in heavy industrial, construction, and maintenance applications where 1-inch drive impact tooling is required. Typical scenarios include assembly and disassembly of large-scale mechanical equipment, structural steel connections, heavy machinery maintenance, and similar tasks involving large hex fasteners. It is appropriate for both shop and field use with compatible 1-inch drive pneumatic or hydraulic impact wrenches.

Key Features

• 1 inch drive size for use with heavy-duty impact wrenches
• 4-1/8 inch socket size for large hex fasteners
• 6-point hex drive design reduces fastener rounding under impact torque
• 5.5 inch overall length provides clearance in deep or recessed fastener applications
• Substantial construction rated for high-torque impact use

Compatibility

Designed for use with 1-inch drive impact wrenches and tools accepting standard 1-inch square drive sockets. Compatible with 4-1/8 inch hex fasteners requiring 6-point contact engagement.

Installation Notes

Installation and removal should be performed by qualified mechanics or tradespeople familiar with 1-inch drive impact tooling. Ensure the impact wrench is rated for the torque demands of the application before use. Inspect the socket for cracks or wear before each use, and never use impact sockets with standard hand-drive ratchets. Follow applicable OSHA and industry safety standards when working with heavy fastener assemblies.