Product Description
Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
Product Description
- Features:
- Reliable quality, long service life, and rare abnormal breakage during service life.
- Good flushing effect to ensure high drilling rate.
- Strict quality warranty and compensation rules.
- Reasonable designs.
- High penetration.
- Bit Face Shape Selection:
- Drop Center Bit: For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
- Concave Face: The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.
- Convex Face: For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
- Flat Face: This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates and resistance to steel wash.
Product Description
Introducing our top-of-the-line steel and carbide products from Changsha Tianhe Drilling Tools and Machinery Co., Ltd. Our steel is a first-class special alloy steel that boasts exceptional strength, heat resistance, and durability. It is designed to withstand even the most demanding conditions, making it the perfect choice for various applications.
Our tungsten carbides, sourced from China, are widely recognized as the best in the industry. Known for their superior quality and performance, they are commonly used in a variety of applications. Additionally, we also offer tungsten carbide from Europe, ensuring a wide range of options to suit your specific needs.
With our high-quality steel and top-notch tungsten carbides, you can trust that our products will deliver exceptional results. Whether you require strength, heat resistance, or wearability, our products have got you covered. Choose Changsha Tianhe Drilling Tools and Machinery Co., Ltd. for reliable and durable steel and carbide solutions.
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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