Proto J09902 Socket Adapter 1 in Impact Drive No. 5 Spline

Product Description

The PROTO J09902 is an impact-drive socket adapter designed to connect a 1-inch male square drive to a No. 5 spline female drive. It bridges tool drives in high-torque impact applications, allowing technicians to use spline-drive sockets with standard 1-inch impact wrenches or drive tools. The adapter measures 4-3/8 inches overall length and weighs 2.04 pounds. It is built for the demands of heavy-duty industrial and mechanical service environments where impact-rated connections are required. Licensed mechanics, industrial maintenance technicians, and heavy equipment service professionals are the typical end users.

This adapter is suited for heavy equipment repair, fleet maintenance, industrial assembly, and similar applications where a No. 5 spline-drive socket must be driven by a 1-inch square-drive impact tool. It is appropriate for use in shops and field service settings that require reliable torque transfer through adapter connections under sustained impact loads.

Key Features

• 1-inch male square drive accepts standard 1-inch impact wrenches and drive tools
• No. 5 spline female drive connects to spline-drive sockets
• 4-3/8 inch overall length provides clearance in tight access applications
• Impact-rated drive adapter construction rated for high-torque use
• Sold individually — package quantity of 1

Compatibility

Designed as an impact-drive socket adapter for use with 1-inch square-drive impact tools and No. 5 spline-drive sockets in heavy-duty mechanical service applications.

Installation Notes

This adapter is installed and used by licensed mechanics and industrial maintenance technicians. Ensure the adapter is fully seated in both the drive tool and the socket before applying torque. Inspect the adapter for wear, cracks, or damage before each use, and do not use damaged adapters under impact loads. Always confirm the drive tool and socket are rated for the torque output being applied.