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Jobber Drill Bit Fractional Black Oxide & Gold 135º Split Point

From: $13.87

BoltCraft’s Jobber Drill Bit Fractional Black Oxide Gold with a 135° Split Point delivers precision and durability for a wide range of drilling applications. The black oxide gold finish enhances lubricity, reduces friction, and increases the bit’s resistance to wear, making it ideal for drilling in metal, wood, and plastics.


$100 minimum order


  • The Fractional Black Oxide Gold Jobber Drill Bit by BoltCraft is engineered for professional-grade performance, offering a balance of hardness and toughness. The 135° split point tip starts drilling immediately with less force and eliminates “walking” or “skating,” providing clean, accurate holes.

Applications & Advantages

  • Suitable for use in a variety of materials, including ferrous and non-ferrous metals, wood, and plastic, making it versatile for construction, fabrication, and maintenance tasks.
  • The black oxide gold finish not only adds to the bit’s aesthetic appeal but also provides a thin protective layer that minimizes heat buildup, extending the drill bit’s life.
  • The 135° split point design ensures a fast and efficient drilling action, reducing work time and increasing productivity.

Material & Specifications

  • Made from high-speed steel (HSS) for a combination of strength, wear resistance, and heat tolerance, ensuring performance in demanding situations.
  • The black oxide gold coating improves lubrication, allowing for smoother drilling with less effort and greater speed.
  • Available in fractional sizes to meet the precise drilling requirements of various applications, ensuring the right fit for each task.

Reliability & Performance

  • Designed for heavy-duty use, the drill bit maintains its sharpness and effectiveness over multiple uses, reducing the need for frequent replacements.
  • The split point tip and optimized flute design facilitate efficient chip removal, preventing clogging and ensuring clean, consistent drilling.

Testing & Compliance

  • Rigorously tested for material hardness, sharpness, and durability to ensure they meet the high standards expected of professional-grade drill bits.
  • Complies with industry norms for dimensional accuracy and performance, ensuring compatibility with standard drilling equipment and accessories.
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