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WRENCH SET CHECK NUT 9PC METRIC BLK - Martin Tools

Part #: MTCN9KM

The Martin Tools MTCN9KM Check Nut Wrench Set is a professional-grade 9-piece metric tool collection, meticulously engineered for precise work in confined automotive and industrial environments. This specialized set features durable, drop-forged steel wrenches with an ultra-thin head design and an industrial black finish, providing superior access and longevity.

Key Features

  • Professional 9-Piece Metric Set: This comprehensive set includes 9 metric check nut wrenches in essential sizes: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, and 19mm, along with a convenient kit bag for organization and transport.
  • Durable Drop-Forged Steel: Each wrench is drop-forged from high-quality steel bar, ensuring exceptional strength and durability to withstand the rigorous demands of professional use.
  • Ultra-Thin Head & 15-Degree Offset: Designed with an unusually thin head and a 15-degree angled slotted opening, these wrenches provide critical clearance for engaging fasteners in extremely tight spaces where standard wrenches cannot fit.
  • Industrial Black Finish: The industrial black finish offers enhanced corrosion resistance and a professional appearance, extending the lifespan of the tools in demanding workshop conditions.
  • Made in USA: Manufactured in the USA, ensuring adherence to stringent quality standards for reliable performance and precision.

Applications

This Martin Tools MTCN9KM Check Nut Wrench Set is indispensable for professional technicians and mechanics working on a wide array of applications. They are ideal for servicing check nuts, stop nuts, jam nuts, and hydraulic fittings in automotive, industrial, and HVAC systems. The thin profile and angled head are particularly beneficial for tasks requiring access to tight engine bay clearances, steering and suspension components, brake line and fuel line fittings, and machinery lock nuts. These wrenches excel where precise adjustment or removal of extremely thin adjusting and lock nuts is critical, preventing damage and improving efficiency.

Specifications

  • Manufacturer: Martin Tools
  • Model Number: MTCN9KM
  • Set Content: 9 Metric Check Nut Wrenches (10, 11, 12, 13, 14, 15, 16, 17, 19mm) and Kit Bag
  • Material: Drop Forged Steel
  • Finish: Industrial Black
  • Offset Angle: 15 Degree
  • Weight: 1.21 Pound
Only 1 left in stock - order soon

$170.46

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  • Model: 478084
  • Shipping Weight: 1.15lbs
  • UPC: 697950071831
  • Manufacturers Part #: MTCN9KM
  • Manufactured by: Martin Tools
  • Also Known As: MTCN9KM

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

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