Proto J10021T Impact Socket 1 in Drive 1-5/16 in 12-pt

Product Description

The PROTO J10021T is a 12-point impact socket designed for heavy-duty fastener work in professional trade environments. Built from steel with a chrome finish, it accepts a 1 inch drive and fits a 1-5/16 inch fastener. The overall length is 2-11/16 inches, making it compact enough for tight clearances while still handling the torque demands of impact wrench applications. Mechanics, industrial maintenance techs, and fleet service professionals rely on this socket for high-torque removal and installation tasks where standard hand-tool sockets would fail under repeated impact loading.

The J10021T is suited for automotive, heavy equipment, and industrial maintenance applications where a 1 inch drive impact wrench is the primary tool. It is appropriate for both shop and field use, covering fastener sizes common on large-frame vehicles, structural assemblies, and machinery. The 12-point configuration engages hex fasteners at multiple positions, which is useful in confined or awkward access scenarios.

Key Features

• 1 inch drive size compatible with heavy-duty impact wrenches
• 1-5/16 inch socket size for large-format fasteners
• 12-point design for multiple engagement positions on hex fasteners
• Steel construction rated for impact tool use
• Chrome finish for corrosion resistance and easy identification
• Compact 2-11/16 inch overall length for tighter access

Compatibility

Designed as an OEM-style replacement or service addition for 1 inch drive impact socket sets used in automotive, fleet, and industrial maintenance applications.

Installation Notes

This socket is intended for use by qualified mechanics and maintenance technicians using 1 inch drive impact wrenches. Always verify the fastener size before applying torque to avoid rounding. Inspect the socket for cracks or deformation before each use, and never use impact sockets with hand-ratchet drives, as the chrome finish and wall geometry are not rated for that application. Follow applicable workplace safety codes when working under raised equipment or on pressurized assemblies.