Proto J10072 Impact Socket 1 in Drive 4-1/2 in 6-point

Product Description

The PROTO J10072 is a heavy-duty impact socket designed for use with 1-inch drive impact wrenches and air tools. The socket measures 4-1/2 inches across the drive opening and features a 6-point hex drive configuration. At 6 inches overall length, it provides the reach needed for deep or recessed fastener applications. Weighing 17.61 pounds in packaged form, this is a substantial, industrial-grade tool built for high-torque fastening work. It is suited for professional mechanics, industrial maintenance technicians, and heavy equipment shops where 1-inch drive tooling is standard.

The J10072 is used in applications requiring large-drive impact tooling, including heavy equipment assembly and disassembly, structural bolting, truck and fleet maintenance, and industrial machinery service. The 4-1/2-inch socket size is common in large-fastener applications found on axles, frame components, and heavy machinery. The 6-point contact pattern reduces the risk of fastener rounding under high torque, making it appropriate for stubborn or high-load fasteners in demanding shop and field environments.

Key Features

• 1-inch square drive — compatible with 1-inch drive impact wrenches and breaker bars
• 4-1/2-inch socket size for large industrial and heavy equipment fasteners
• 6-point hex drive geometry reduces fastener rounding under high torque
• 6-inch overall length provides reach for recessed or countersunk fastener positions
• Designed for impact use — constructed to handle the shock loading of pneumatic and hydraulic impact tools

Compatibility

Designed as an OEM-style replacement and standard fitment for 1-inch drive impact tool sets used in heavy industrial and fleet maintenance applications.

Installation Notes

Installation is performed by qualified mechanics or industrial maintenance technicians. Before use, confirm the impact wrench or breaker bar is rated for 1-inch drive and that the fastener torque requirement is within the capacity of the drive tool being used. Always inspect the socket for cracks or deformation before applying high-torque impact loads. Do not use impact sockets as substitutes for hand-drive sockets, and do not use hand-drive sockets in place of impact sockets.