Product Description
Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
Product Description
- Bit Face Shape Selection:
- Drop Center Bit: Designed for high penetration rates in soft to medium hard and fissured rock formations. Suitable for low to medium air pressures, it provides maximum hole deviation control.
- Concave Face: The all-around application bit face specifically designed for medium hard and homogeneous rock formations. It offers good hole deviation control and excellent flushing capacity.
- Convex Face: Ideal for high penetration rates in soft to medium-hard rock formations with low to medium air pressures. It is highly resistant to steel wash and reduces load and wear on the gauge buttons. However, it may have poor hole deviation control.
- Flat Face: Suitable for hard to very hard and abrasive rock formations in applications with high air pressures. It provides good penetration rates and resistance to steel wash.
- Features:
- Reliable quality and long service life with rare abnormal breakage during the product's lifespan.
- Good flushing effect ensures high drilling rate.
- Strict quality warranty and compensation rules.
- Reasonable designs that enhance performance.
- High penetration for efficient drilling.
Product Description
Steel: Our steel is a first-class special alloy with exceptional strength, heat resistance, and durability. It is designed to withstand even the most demanding conditions, making it perfect for various applications.
Carbide: We offer the best tungsten carbides sourced from China, known for their superior quality and performance. These carbides are widely used in various industries for their excellent hardness and wear resistance. Additionally, we also provide tungsten carbide options from Europe, ensuring a diverse range of choices for our customers.
At Changsha Tianhe Drilling Tools and Machinery Co., Ltd., we are committed to delivering top-notch products that meet the highest standards of quality and performance. With our steel and carbide options, you can trust that your projects will be completed with precision and efficiency.
Model |
Bit diameter mm(inch) |
Weight |
TH79(3.5inch) |
90mm-100mm(3 1/2-3 7 /8) |
4-4.5 |
DHD3.5 |
90mm-105mm(3 1/2-4 1/8) |
4.5-5.5 |
BR33 |
90mm-100mm(3 1/2-3 7 /8) |
4-4.5 |
DHD340 |
105mm-138mm(4 1/10-5 2/5) |
8-12 |
QL40 |
110mm-133mm(4 3/8-5 1/4) |
10-12 |
DHD350 |
135mm-165mm(5 3/10-6 1/2) |
15.2-18 |
MISSION50 |
138mm-165mm(5 2/5-6) |
16-18 |
QL50 |
138mm-152mm(5 2/5-6) |
16-18 |
SD5 |
138mm-152mm(5 2/5-6) |
16-18 |
MAHC50TS398(20inch) |
138mm-152mm(5 2/5-6) |
16-18 |
DHD360 |
152mm-203mm(6-8) |
24-33 |
MISSION60 |
152mm-203mm(6-8) |
21-30 |
SD6 |
152mm-254mm(6-10) |
24-50 |
QL60(COP64G) |
152mm-203mm(6-8) |
24-33 |
XL60 |
152mm-190mm(6-7 1/2) |
22-27 |
DHD380 |
200mm-305mm(7 7/8-12) |
47-82 |
SD8 |
200mm-305mm(7 7/8-12) |
47-82 |
QL80 |
200mm-305mm(7 7/8-12) |
48-84 |
TH220 |
240mm-350mm(9 2/5-13 7/10) |
75-125 |
NUMA100 |
240mm-350mm(9 2/5-13 7/10) |
75-125 |
SD10 |
240mm-350mm(9 2/5-13 7/10) |
75-125 |
DHD112 |
310mm-444.5mm(12 1/5-17 1/2) |
140-252 |
SD12 |
310mm-444.5mm(12 1/5-17 1/2) |
142-254 |
NUMA120 |
310mm-444.5mm(12 1/5-17 1/2) |
140-252 |
TH398(20inch) |
500mm-550mm(19 3/5-21 3/5) |
480-510 |
TH600(32inch) |
800mm-1000mm(31 2/5-39 3/10) |
680-984 |
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