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How Bullet Teeth Improve Drilling

  • April 30, 2025
  • By bitschina@gmail.com
drilling bucket bullet bit

What Are Bullet Teeth?

  • Bullet teeth are essential wear parts used on drilling tools such as augers, drilling buckets, and core barrels in foundation and piling works. Designed with a conical shape and tungsten carbide tips, bullet teeth provide high penetration efficiency and exceptional durability in various soil and rock conditions.
  • When paired with augers, bullet teeth help achieve faster soil removal and cleaner hole formation. On drilling buckets and core barrels, they enable effective cutting and breaking of medium to hard ground, significantly improving productivity and reducing machine wear. Their quick-replacement design minimizes downtime on-site, making them ideal for high-efficiency operations.

Common Applications of Bullet Teeth in Drilling

  • Bullet teeth are widely used in foundation drilling, mining, trenching, and tunneling projects. Their robust design and carbide-tipped heads make them ideal for cutting through a variety of ground conditions—from soft soil to hard rock.
  • In mining and trenching, bullet teeth are essential for breaking compacted soil and abrasive rock layers, improving cutting speed while minimizing equipment wear. For tunnel boring or shaft sinking, they enable precise material removal with reduced vibration and increased stability.
  • Thanks to their wear resistance and quick-change design, bullet teeth reduce downtime and extend tool life, making them a cost-effective choice across drilling applications. Whether you’re in infrastructure, energy, or construction, bullet teeth play a key role in ensuring reliable, high-performance drilling.

How Bullet Teeth Improve Efficiency in Different Ground Conditions

  • Bullet teeth are engineered to deliver consistent cutting performance across various ground conditions, including clay, gravel, sandstone, and hard rock. Their conical shape and tungsten carbide tips allow for aggressive penetration with minimal resistance, reducing energy consumption and wear on drilling equipment.
  • In soft to medium soils, bullet teeth enable fast and clean excavation when used on augers and drilling buckets. In harder formations like shale or limestone, their high-strength structure ensures efficient rock breaking without compromising tool life.
  • By optimizing cutting angles and using wear-resistant materials, bullet teeth extend the working life of drilling tools and minimize downtime. This translates into lower operational costs and higher productivity for contractors working in challenging geotechnical environments. Whether for foundation piling or utility trenching, bullet teeth are key to achieving reliable and efficient drilling results.

Choosing the Right Bullet Teeth for Your Equipment

  • Selecting the right bullet teeth is essential for maximizing drilling efficiency and protecting your equipment. Bullet teeth come in various sizes and alloy grades to suit different drilling conditions and machine types. Whether you’re using augers, drilling buckets, or core barrels, matching the right teeth ensures optimal cutting performance and reduced wear.
  • At FIRMTECH, we offer bullet teeth in multiple diameters and carbide grades to meet diverse soil and rock conditions—from soft clay to hard granite. For heavy-duty applications, we provide high-grade tungsten carbide tips for enhanced wear resistance and durability.
  • We also support custom solutions based on your drilling rig, ground conditions, and project requirements. Whether you need bullet teeth with special shank sizes, customized alloy composition, or reinforced bodies, our engineering team can tailor the right fit.
  • Choosing the proper bullet teeth not only improves drilling speed but also reduces maintenance and downtime. Contact us to find the best solution for your equipment.

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      • MH-1
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      • MH-3R
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    • Straight Rock Auger
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      • MH-1
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      • MH-3R
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    • Straight Rock Auger
    • Conical Rock Auger
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    • Piling Casing
    • PDC Bit
    • Tricone Bit
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