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Socket 3/8" Drive 5/16 Hex Bit - Stanley Proto Industrial Tools

Part #: J49905/16

The Stanley Proto Industrial Tools J49905/16 Hex Bit Socket is engineered for the demands of professional automotive and industrial applications. This 3/8-inch drive, 5/16-inch hex bit socket delivers reliable performance and exceptional durability, making it an essential addition to any professional toolkit. It is designed to provide secure fastening and withstand rigorous use in various work environments.

Key Features

  • Durable Construction: Manufactured from heat-treated alloy steel, this hex bit socket provides superior wear resistance and minimizes distortion, ensuring a long operational life under demanding conditions.
  • Corrosion Resistance: The socket features a full polished chrome finish, applied after boring for enhanced corrosion protection, making it suitable for tough working environments.
  • Optimized Torque Transfer: The hex opening in the bit holder is designed to absorb the full torque load, safeguarding the bit and preventing premature wear.
  • Precision Fit: Precision machined tips ensure proper engagement with fasteners, reducing the risk of slippage, cam-out, and rounding of bolt heads.
  • Standard Compatibility: With a 3/8-inch square drive, this socket is compatible with common professional ratchets, torque wrenches, and other drive tools.

Applications

The Stanley Proto J49905/16 SKT 3/8DR 5/16 HEX BIT is an indispensable tool for a wide range of fastening tasks. It is commonly utilized in automotive repair for components such as disc brake calipers, engine parts, suspension systems, and drivetrain assemblies. In industrial settings, this hex bit socket excels in machinery assembly, maintenance, and the secure tightening or loosening of heavy-duty or corroded fasteners, where enhanced torque capabilities are critical. Its robust design makes it ideal for general-purpose fastening that requires a reliable 5/16-inch hex drive.

Only 1 left in stock - order soon

$14.70

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Tuesday 30 June, 2026.

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