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T1HD 5/16 THUNDER BIT - WALTER SURFACE TECHNOLOGIES

Part #: 12520

The WALTER SURFACE TECHNOLOGIES T1HD 5/16 THUNDER BIT (Model 12520) is engineered for professional technicians and mechanics demanding high performance and durability. This heavy-duty High-Speed Steel (HSS) drill bit delivers reliable, precise drilling in challenging materials within automotive and industrial environments. Its robust construction is designed to minimize breakage and optimize efficiency in portable drilling applications.

Key Features

  • Heavy-Duty HSS Construction: Features a special heavy-duty core that guarantees increased strength and reduced breakage, providing extended tool life in demanding applications.
  • 135° Self-Centering Split Point: Designed to prevent "walking" and reduce thrust requirements, allowing for quick and accurate starts without the need for a pilot hole.
  • Optimized Spiral Flute Design: Enhances chip ejection and coolant flow to the cutting point, improving drilling efficiency and extending bit life, especially with cordless power tools.
  • Black & Gold Surface Treatment: Provides maximum lubricity and reduces friction, enabling higher drilling speeds and improved performance in various metals.

Applications

The WALTER T1HD 5/16 THUNDER BIT is ideal for a broad range of professional applications, including drilling in medium strength alloy materials, mild steel, stainless steel, and non-ferrous metals. It is particularly effective for portable drilling in metal and is a go-to choice for automotive aftermarket tasks such as collision repair and heavy-duty maintenance. Its robust design also makes it suitable for metal fabrication and general industrial maintenance, repair, and operations (MRO).

Specifications

  • Drill Bit Size: 5/16"
  • Overall Length: 4-1/2"
  • Flute Length: 3-3/16"
  • Material: High-Speed Steel (HSS)
  • Shank Type: Straight Shank (Jobber length)
Only 6 left in stock - order soon

$8.40

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This product was added to our catalog on Friday 10 July, 2026.

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