Proto J07521 Impact Socket 3/4 in Drive 1-5/16 in 6-point

Product Description

The PROTO J07521 is a 6-point hex drive impact socket designed for heavy-duty fastener work in industrial and trade environments. Built for a 3/4 inch drive, it accepts a 1-5/16 inch fastener and measures 2-3/16 inches overall length. The 6-point contact geometry reduces the risk of rounding fastener heads under high-torque impact loading. Weighing 1.19 pounds, this socket is sized for professional use with 3/4 inch drive impact wrenches. Mechanics, maintenance technicians, and industrial service pros rely on this type of socket for equipment assembly, structural fastening, and heavy equipment repair where standard chrome sockets would fail under impact stress.

This socket fits standard 3/4 inch square drive impact wrenches and is suited for both residential and commercial mechanical work. Common applications include heavy equipment maintenance, fleet repair, industrial machinery service, and structural fastening tasks that require a 1-5/16 inch hex socket with reliable torque transfer. The compact 2-3/16 inch overall length allows use in moderately tight access areas without sacrificing drive engagement depth.

Key Features

• 3/4 inch square drive fits standard heavy-duty impact wrenches
• 1-5/16 inch socket size for large hex fasteners
• 6-point hex contact reduces fastener rounding under impact torque
• 2-3/16 inch overall length for a compact profile
• 1.19 pound construction indicating heavy-wall impact-grade build

Compatibility

Designed as an OEM-style impact socket for use with 3/4 inch drive impact wrenches requiring a 1-5/16 inch 6-point hex socket.

Installation Notes

Install and remove using a 3/4 inch drive impact wrench or breaker bar. Always verify the socket is fully seated on the drive anvil and fastener before applying torque. Do not use impact sockets with standard ratchets in applications exceeding the ratchet torque rating. Inspect the socket for cracks or deformation before each use and remove from service if damage is found.