Bullet Teeth
Engineered for strength and precision, our bullet teeth deliver superior cutting performance and durability for efficient foundation drilling.
Round Shank Chisels (Bullet Teeth) – Essential for Efficient Rock Drilling
Introduction
Round shank chisels, also known as bullet teeth, are critical wear parts for rotary rock drilling buckets, core barrels, and rock augers. During piling operations, these teeth are the first to make contact with rock or soil, cutting through tough materials before the drilling tools extract them. The durability and efficiency of the drilling teeth directly impact the overall piling progress, making their selection crucial.
We offer a wide range of high-performance drilling teeth, including B47K17.5H, B47K19H, B47K22H, C31 (Kennametal & Betek equivalents), and more. Selecting the right drill bits based on ground conditions ensures optimal cutting performance and extended service life. For expert recommendations, Siderwin is here to assist.
Application
Bullet teeth are used with rock drilling buckets, core barrels, and rock augers in foundation bored piling projects. Designed for breaking and ripping medium to strong weathered rock layers and loosening water-bearing cohesive and non-cohesive soils, our rotary piling tools deliver exceptional penetration efficiency and wear resistance, even in hard bedrock conditions.
Why Choose Siderwin Drilling Teeth?
High-Quality Tungsten Carbide Tips – Ensuring superior hardness and extended wear life.
Reinforced Alloy Steel Body – Withstands extreme impact and abrasion.
Precision Engineering – Guarantees efficient cutting and reduced downtime.
Customized Solutions – Tailored to different ground conditions and project requirements.
Parameters of Siderwin Bullet Teeth Drill Bits:
| Type | Model No. | Unit Weight Kg | Geological Adaptation |
| Bullet Teeth | B47K17.5H | 1.1 | Suitable for below 60MPa: All kinds of unstable shale, dense marl, relatively strong sandstone, sandy shale, shale sandstone, weathering rock |
| Bullet Teeth | B47K19H | 1.2 | |
| Bullet Teeth | B47K22H | 1.25 | |
| Round Holder | B85/2 | 2.45 | Heat treatment, with strong stability and improve the welding strength. Can improve the rotary performance of the tool head. |
| Square Holder | B43H | 1.75 | |
| Bullet Teeth | C31HD | 0.5 | Used for drilling most soil and gravel or shale. Use spiral, small aperture, less abrasive rock and permafrost. |
| Square Holder | C30 | 1.25 | Heat treatment, with strong stability and improve the welding strength. Can improve the rotary performance of the tool head. |
| Round Holder | C30 | 0.8 | |
| Other sizes can be manufactured as per customers’ demand. | |||
| Part of Siderwin other Drilling Teeth intro: | ||
| Type | Model No. | Geological Adaptation |
| Integrated Type | 55-22T | Moderately weathered rock 30Mpa-50Mpa |
| 60-26T | Moderately weathered rock 30Mpa-90Mpa | |
| 60-28T | Moderately weathered rock 30Mpa-100Mpa | |
| 60-30T | Moderately weathered rock 30Mpa-120Mpa | |
| Hard rock wear resistant | 55-22S | Moderately weathered rock 30Mpa-60Mpa |
| 60-24S | Suitable for hard rock 30Mpa-80Mpa | |
| 60-28S | Suitable for hard rock 30Mpa-120Mpa | |
| 60-31S | For extremely hard rock | |
| Langya series | 55-10K22 | Suitable for drilling teeth wear too fast (Medium hard rock 30Mpa-50Mpa) |
| 60-10K26 | Suitable for drilling teeth wear too fast (Medium hard rock 30Mpa-90Mpa) | |
| 60-12K28 | Suitable for drilling teeth wear too fast (Medium hard rock 30Mpa-100Mpa) | |
| Langya series | 55-12K22 | Suitable for drilling teeth wear too fast (Medium hard rock 30Mpa-60Mpa) |
| 60-12K24 | Suitable for drilling teeth wear too fast (Medium hard rock 30Mpa-100Mpa) | |
| 60-14K28 | Suitable for drilling teeth wear too fast (Medium hard rock 30Mpa-120Mpa) | |
| Article alloy | 55-9T | Suitable for drilling teeth wear too fast ( Medium hard rock 20-50Mpa) |
| Hard rock optical body ductile teeth | Impact 60-26 | Suitable for hard rock with high requirement of impact toughness of alloy 30-100 MPA |
| The pebble series | 60F-10K20 | Suitable for tooth wear too fast (pebble stratum) |
| Crushed stone gravel | 60F-22T | Suitable for gravelly cobble formation |
| Hard rock attacking type | 60-24 | For hard rock requiring high impact toughness of alloy 30-80Mpa |
| There are more types of bullet teeth suitable for different strata geology, contact us freely if you need much detail information. | ||
Siderwin’s Competitive Advantages:
Patented Ergonomic Design
Optimized structural engineering ensures superior durability and longevity, reducing wear and operational stress.
High-Performance Carbide Tungsten Teeth
Precision-forged round holders with quarter-head centering technology enhance stability and load distribution during drilling.
Advanced Low-Cobalt Carbide Formulation
Larger carbide tips combined with our proprietary low-cobalt material significantly boost abrasion resistance, ideal for harsh drilling environments.
Superior Impact Resistance
Uniform micro-particle distribution within the carbide tip enhances force intensity, minimizing breakage and cracks even under high-impact bored piling conditions.
Efficiency-Driven Design Features
Generously sized carbide tips, ultra-smooth body surfaces, and a multi-stage tooth design reduce resistance and uneven friction, enabling faster drilling speeds and lower energy consumption.
Customized Solutions for Diverse Strata
A comprehensive range of drill teeth tailored to varying geological conditions, with expert recommendations to match your project’s specific requirements.
End-to-End Manufacturing Excellence
In-house production with robust capacity, OEM/ODM support, and a dedicated R&D team ensure high-quality products, competitive factory pricing, and guaranteed on-time delivery.
Contact Siderwin today to explore how our innovative drilling teeth solutions can elevate your project’s efficiency and cost-effectiveness.
