Proto J15056 Impact Socket 1-1/2 in Drive 3-1/2 in 6-point

Product Description

The PROTO J15056 is a heavy-duty impact socket designed for high-torque fastening and removal applications in industrial, mechanical, and construction environments. Built around a 1-1/2 inch drive, it accepts 3-1/2 inch hex fasteners and features a 6-point contact geometry that distributes force evenly across the fastener flats, reducing rounding under load. The overall length is 4-31/32 inches. This socket is suited for licensed mechanics, millwrights, ironworkers, and heavy equipment technicians who work with large-diameter fasteners requiring impact-rated tooling.

The J15056 is used in heavy industrial settings where large hex fasteners are common, such as structural steel assembly, heavy equipment maintenance, pipeline flange work, and large-motor service. Its 1-1/2 inch drive size places it in the category of tooling used with heavy-duty pneumatic or hydraulic impact wrenches. It is appropriate for both shop and field use by professionals handling oversized fastening tasks that exceed the capacity of standard 3/4 inch or 1 inch drive tooling.

Key Features

• 1-1/2 inch drive size rated for high-torque impact wrench use
• 3-1/2 inch socket size fits large hex fasteners found in industrial applications
• 6-point drive geometry reduces fastener rounding under heavy impact loads
• Overall length of 4-31/32 inches provides clearance in tight installation points
• Impact-rated construction suited for pneumatic and hydraulic drive tools

Compatibility

Designed as an OEM-style impact socket for use with 1-1/2 inch drive pneumatic, hydraulic, or manual torque wrenches in heavy industrial and mechanical service applications.

Installation Notes

Installation and fastener removal should be performed by qualified mechanics or tradespeople familiar with large-drive impact tooling. Ensure the drive tool is rated to match or exceed the torque demands of the application before use. Inspect the socket for cracks, chips, or wear before each use, and never use impact sockets with non-impact hand ratchets. Secure the socket firmly onto the drive anvil before applying torque to prevent ejection under load.