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The PROTO JRR15070 is a socket retaining ring designed to secure sockets onto 1.5-inch drive tools, preventing accidental separation during use. With a groove diameter of 4.375 inches and a ring diameter of 4.625 inches, it seats precisely in the retaining groove of compatible large-drive sockets. At 0.25 inches high, this low-profile ring locks sockets firmly in place without interfering with clearance in tight spaces. It is a standard replacement or spare-parts item used by industrial mechanics, heavy equipment technicians, and tool-room personnel working with large-drive socket sets.
This retaining ring is suited for heavy-duty industrial and mechanical applications where 1.5-inch drive sockets are standard equipment. Typical environments include fleet maintenance shops, industrial manufacturing facilities, and heavy equipment service operations. The ring fits into the groove of 1.5-inch drive sockets and pairs with matching drive tools such as breaker bars, torque wrenches, and impact sockets in that drive class. It is a single-piece hardware item packaged individually.
Designed as an OEM-style retaining ring for 1.5-inch drive sockets requiring a groove diameter of 4.375 inches. Install only in sockets with matching groove dimensions to ensure proper retention.
Installation is performed by hand or with a retaining ring tool; no power tools are required. Ensure the socket and drive tool are fully disengaged from any load or torque source before removing or installing the retaining ring. Inspect the groove for wear or damage before seating the new ring. Replace any retaining ring that shows deformation, cracking, or incomplete seating in the groove.
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