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HEX BIT SOCKET 3/8" DR 10MM SHORT - Stanley Proto Industrial Tools

Part #: J4990-10MST

The Stanley Proto J4990-10MST 3/8" Drive 10mm Short Hex Bit Socket is engineered for professional technicians and mechanics requiring reliable performance in demanding automotive and industrial environments. This specialized tool provides the robust construction and precise fit necessary for tackling various fastening tasks, especially in confined spaces where standard sockets may not reach.

Key Features

  • Professional-Grade Construction: Manufactured by Stanley Proto Industrial Tools, this hex bit socket is built from durable alloy steel, designed to withstand the rigors of daily professional use.
  • Optimal Access: The short profile of this 10mm hex bit socket allows for efficient access to fasteners in tight clearances, a common challenge in engine bays, undercarriages, and machinery.
  • Precision Fit: The accurately machined 10mm hex bit ensures a snug engagement with fasteners, reducing the risk of stripping and improving torque transfer.
  • 3/8" Drive Size: Compatible with standard 3/8" drive ratchets, extensions, and torque wrenches, offering versatility within an existing tool collection.
  • Enhanced Durability: Heat-treated for increased strength and wear resistance, contributing to a longer tool life in high-stress applications.

Applications

This hex bit socket is an essential component for a wide range of repair and maintenance tasks. It is particularly useful in automotive applications for working on components such as brake caliper bolts, engine manifold fasteners, drivetrain assemblies, and various interior and exterior trim pieces that utilize hex head fasteners. In industrial settings, it excels in machine assembly, equipment maintenance, and other operations requiring precise and reliable fastening in compact areas. Its robust design makes it suitable for both high-torque applications and delicate work where fastener integrity is critical.

Specifications

  • Model Number: J4990-10MST
  • Manufacturer: Stanley Proto Industrial Tools
  • Drive Size: 3/8"
  • Bit Size: 10mm Hex
  • Type: Short Bit Socket
Only 1 left in stock - order soon

$15.13

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This product was added to our catalog on Saturday 11 July, 2026.

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