Proto J10041ML Impact Socket 1 in Drive 41mm 6-point

Product Description

The PROTO J10041ML is a heavy-duty impact socket designed for use with 1-inch drive impact wrenches and ratchets. Built from alloy steel, this socket features a 6-point hex drive design that delivers full contact on fastener flats, reducing the risk of rounding under high-torque conditions. The socket measures 41mm across and has an overall length of 4 inches, making it well-suited for deep or recessed fastener applications. It is typically installed and used by industrial mechanics, fleet technicians, heavy equipment operators, and professional tradespeople who require reliable performance under repeated impact loads.

The J10041ML is suited for industrial, commercial, and fleet maintenance environments where 1-inch drive tooling is standard. Common applications include heavy truck service, agricultural equipment repair, construction machinery maintenance, and structural assembly work. The 41mm socket size addresses large fasteners commonly found on axle hardware, wheel hubs, and heavy structural bolts. The 6-point design is preferred for high-torque impact use over 12-point alternatives because it concentrates force on the flat surfaces of a fastener rather than the corners.

Key Features

• 1-inch square drive fits standard industrial-grade impact wrenches and ratchets
• 41mm socket size for large fasteners common in heavy equipment and fleet applications
• 6-point hex drive geometry reduces fastener rounding under impact torque
• Alloy steel construction provides durability under repeated high-torque impact use
• 4-inch overall length accommodates recessed or extended fastener positions

Compatibility

Designed as an OEM-style replacement or direct-use impact socket compatible with standard 1-inch drive impact wrenches, torque multipliers, and ratchets used in heavy-duty industrial and fleet service applications.

Installation Notes

This socket is intended for use by qualified mechanics and tradespeople familiar with 1-inch drive impact tooling. Always ensure the socket is fully seated on the drive anvil before applying torque, and verify the retaining pin or hog ring is engaged before use. Inspect the socket for cracks or deformation before each use and remove from service if damage is found. Do not use impact sockets with hand-drive torque wrenches, as impact-rated and hand-drive tooling are not interchangeable for precision torque applications.