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DRILLBIT LETTER J HSS - Irwin

Part #: HN40110ZR

The Irwin DRILLBIT LETTER J HSS (High-Speed Steel) is a precision-engineered tool designed for the rigorous demands of professional automotive and industrial applications. Manufactured by Irwin, a trusted name in high-performance tools, this drill bit delivers consistent, reliable performance for a wide range of drilling tasks, ensuring efficiency and accuracy in your workshop.

Key Features

  • High-Speed Steel (HSS) Construction: Crafted from premium HSS, this drill bit offers superior hardness and heat resistance, maintaining its sharp edge even under demanding drilling conditions.
  • Letter J Size: The specific "Letter J" sizing provides precise hole diameters, critical for accurate fitting and component installation in professional environments.
  • Durable and Resilient: Built to withstand the daily wear and tear of professional use, ensuring a longer tool life and reducing the need for frequent replacements.
  • Optimized Flute Design: Engineered for efficient chip evacuation, which reduces heat buildup and prevents clogging, promoting smoother drilling and extending bit life.

Applications

This Irwin HSS drill bit is an essential component for professional technicians and mechanics in various scenarios. It is ideal for drilling precise pilot holes in metal components, expanding existing holes for fasteners, or general-purpose drilling in materials such as steel, aluminum, brass, plastic, and wood. Common uses include automotive body work, engine component maintenance, fabrication of custom parts, and general repair tasks in both industrial and workshop settings where precision and durability are paramount.

Only 5 left in stock - order soon

$8.15

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  • Model: 443102
  • Shipping Weight: 0.06lbs
  • UPC: 247210156794
  • Manufacturers Part #: HN40110ZR
  • Manufactured by: Irwin
  • Also Known As: HN40110ZR

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

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