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3/8" Starter Bundle - Nut Grip & Z-Series w/ Quick Release - Koken

Part #: KB-3B5ZB

The Koken KB-3B5ZB 3/8" Starter Bundle provides professional technicians and mechanics with a versatile and high-performance socket set designed for demanding automotive and industrial applications. This bundle combines Koken's innovative Nut Grip sockets for secure fastener retention with their precision-engineered Z-Series thin-wall sockets, all enhanced by a quick-release mechanism for efficient tool changes.

Key Features

  • Nut Grip Technology: Integrated ball retention system within the sockets securely holds nuts and bolts, preventing dropped fasteners in hard-to-reach areas.
  • Z-Series Thin-Wall Design: Offers a reduced outer diameter for accessing fasteners in confined spaces and tight engine compartments, without compromising strength.
  • Quick Release Mechanism: Facilitates swift and secure attachment and detachment of sockets, improving workflow efficiency during critical tasks.
  • 3/8" Drive Standard: Provides broad compatibility with common professional ratchet handles, extensions, and accessories.
  • Professional-Grade Construction: Manufactured from high-quality steel, ensuring exceptional durability and resistance to wear, even under rigorous daily use.

Applications

This Koken 3/8" Starter Bundle is an essential addition to any professional toolkit, excelling in a variety of challenging scenarios. It is particularly well-suited for automotive repair, including engine maintenance, chassis work, interior component installation, and exhaust system adjustments where precise fit and fastener security are paramount. Industrial technicians will also find this bundle invaluable for assembly, maintenance, and repair tasks on machinery and equipment, especially in spaces with limited access.

We have 10 in stock
List: $288.07 Save: $57.61

$230.46

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 423254
  • Shipping Weight: 1.6lbs
  • Manufacturers Part #: KB-3B5ZB
  • Manufactured by: Koken
  • Also Known As: KKN3B5ZB

This product was added to our catalog on Monday 04 May, 2026.

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