Proto 1/2" Drive Socket 7/8" - 12 Point J5428-SBD

Proto's J5428-SBD is a professional-grade 1/2-inch drive 7/8-inch socket engineered for high-torque industrial and automotive applications. This SAE socket features a 12-point configuration, which provides twice the engagement points of a standard 6-point socket, allowing for faster indexing and improved access in confined work areas where handle swing is limited. It incorporates Proto's patented TorquePlus™ design, a high-performance drive configuration that allows the socket to grip the flats of the fastener rather than the corners. This radius-corner geometry minimizes the risk of rounding, protects hardware, and provides the grip necessary to turn worn, rusted, or damaged fasteners. Forged from high-strength alloy steel and finished with full polish chrome, this tool is built to meet or exceed ASME B107.110-2012 and SAE AS4984A standards.
Key Features
TorquePlus™ Drive System: Advanced internal geometry shifts contact stress away from fastener corners and onto the flats, reducing rounding and maximizing torque transfer.
High-Access 12-Point Profile: Provides twice the engagement positions of a 6-point socket, allowing for faster alignment and better maneuverability in restricted areas.
Industrial Alloy Steel: Forged and heat-treated for maximum strength and long-term durability under heavy-duty professional use.
Full Polish Chrome Finish: Delivers a professional, easy-to-clean surface that provides excellent resistance to rust and corrosion.
Optimized for Maintenance: Specifically designed to effectively grip and turn fasteners that are already worn, rusted, or made from soft materials.
Standard SAE Dimensions: Features a 7/8-inch opening size with an overall length of 1-9/16 inches for compatibility with 1/2-inch drive ratchets.
Product Weight: Weighs approximately 0.26 lbs, offering a robust and durable profile for heavy-duty professional tasks.