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1/2"sq. UNIVERSAL JOINT - NEPROS

Part #: BJ4

The NEPROS BJ4 1/2"sq. Universal Joint is engineered for professional technicians and mechanics who demand precision, durability, and access in challenging work environments. This professional-grade tool facilitates smooth torque transfer through its flexible joint movement, making it indispensable for tasks requiring the manipulation of fasteners in tight or angled spaces. Built to NEPROS's exacting standards, the BJ4 ensures reliable performance and longevity in demanding automotive and industrial applications.

Key Features

  • Smooth Torque Transfer: Features a ground cross mechanism where two rotating shafts are on the same axis, providing seamless movement and excellent torque transmission.
  • High Precision and Durability: Manufactured with high dimensional accuracy and a high-strength design that includes a reduced jaw opening and high-grade spring washers to improve swing retention and overall durability.
  • Enhanced Access: Specifically designed for use in confined spaces, allowing technicians to reach bolts and nuts that are otherwise inaccessible with standard straight sockets.
  • Professional-Grade Construction: Crafted from high-quality materials, embodying NEPROS's commitment to superior strength, ease of use, and a refined finish.

Applications

The NEPROS BJ4 1/2"sq. Universal Joint is an essential tool for a wide range of professional tasks. It is ideally suited for automotive repair, including engine bays and suspension work, where fasteners are often located at difficult angles. Beyond vehicles, this universal joint proves invaluable in machinery and equipment maintenance across various industries, enabling technicians to tighten or loosen bolts and nuts efficiently in hard-to-reach positions.

Specifications

  • Drive Size: 1/2" (12.7 sq.)
  • Head Diameter (D): 24.8 mm
  • Overall Length (L): 57 mm
  • Weight: 125 g
Only 5 left in stock - order soon

$33.46

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 442645
  • Shipping Weight: 0.31lbs
  • UPC: 00498943606217
  • Manufacturers Part #: BJ4
  • Manufactured by: NEPROS
  • Also Known As: KTC-BJ4

This product was added to our catalog on Saturday 30 May, 2026.

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