Introducing the extraordinary Thread Drill Bits Retrac Button Bit by Changsha DTH Drill Construction Machinery Co., Ltd., your ultimate solution to enhancing the performance and efficiency of Mining Machine Parts! Crafted with meticulous precision engineering, these drill bits ensure unparalleled reliability, even in the most challenging environments. Elevate your drilling operations to exceptional heights with our premium offering.
1. Featuring an elegantly straightforward structure, our bits are ingeniously designed for ease of manufacture and maintenance. This simplicity transforms into a cost-effective solution for all your drilling endeavors, reducing both time and resources without compromising on quality.
2. Our bits feature an innovative thread design that is a hallmark of stability and precision. This advancement significantly minimizes deviations during drilling, guaranteeing unmatched accuracy and consistency with each operation, enhancing your project's overall success.
3. Engineered for versatility, these bits exhibit unparalleled adaptability across a broad range of geological conditions. Whether rugged or smooth terrain, our bits deliver dependable performance, ensuring consistent results regardless of the challenges presented by diverse terrains.
4. Our bits are crafted with user convenience in mind, featuring quick installation and disassembly capabilities. This efficiency minimizes operation time, effectively maximizing productivity and ensuring a smooth and hassle-free experience for operators.
5. Perfectly suited for general drilling operations, our bits guarantee reliability and efficiency, effortlessly meeting a wide variety of drilling requirements. Experience ease and precision in every application, ensuring your projects are executed with the utmost proficiency.
| Model |
Head shape |
Head diameter (mm) |
Length (mm) |
Number of holes |
Button type (optional) |
Weight (kg) |
| R25 |
Flat Face |
38 |
105 |
1 |
Ballistic |
0.85 |
| Flat Face |
45 |
113 |
2 |
Ballistic |
0.75 |
| R32 |
Flat Face |
45 |
113 |
2 |
Ballistic |
0.93 |
| Flat Face |
64 |
130 |
3 |
Domed |
1 |
| Convex Face |
89 |
132 |
2 |
Domed |
1.25 |
| R38 |
Center Drop Face |
64 |
130 |
2 |
Domed - Ballistic |
1.35 |
| Center Drop Face |
127 |
190 |
4 |
Domed - Ballistic |
3.95 |
| Center Drop Face |
140 |
190 |
4 |
Domed - Ballistic |
4.85 |
| Center Drop Face |
176 |
210 |
4 |
Domed - Ballistic |
6.95 |
| Center Drop Face |
212 |
220 |
4 |
Domed - Ballistic |
8.65 |
| T38 |
Center Drop Face |
64 |
130 |
2 |
Domed |
1.35 |
| Center Drop Face |
72 |
140 |
4 |
Domed |
2.25 |
| Center Drop Face |
76 |
140 |
4 |
Domed |
2.9 |
| Center Drop Face |
89 |
132 |
2 |
Domed |
1.85 |
| T45 |
Triangle Face |
89 |
145 |
4 |
Domed - Domed |
3.5 |
| Center Drop Face |
72 |
140 |
4 |
Domed - Domed |
2.25 |
| Center Drop Face |
76 |
140 |
4 |
Domed - Domed |
2.9 |
| Center Drop Face |
89 |
155 |
4 |
Domed - Domed |
3.8 |
| Center Drop Face |
102 |
165 |
4 |
Domed - Domed |
4.8 |
| T51 |
Flat Triangle Face |
102 |
155 |
4 |
Domed - Domed |
5.5 |
| Flat Triangle Face |
115 |
165 |
4 |
Domed - Domed |
7.5 |
| Center Drop Face |
89 |
155 |
4 |
Domed - Domed |
4.15 |
| Center Drop Face |
102 |
155 |
4 |
Domed - Domed |
5.8 |
| Center Drop Face |
127 |
165 |
4 |
Domed - Domed |
7.7 |
| ST58 |
Center Drop Face |
89 |
175 |
4 |
Ballistic - Ballistic |
4.4 |
| Center Drop Face |
102 |
185 |
2 |
Ballistic - Ballistic |
5.8 |
| Center Drop Face |
127 |
220 |
2 |
Ballistic - Ballistic |
8.9 |
| ST68 |
Flat Face |
102 |
180 |
2 |
Domed - Domed |
5.4 |
| Center Drop Face |
115 |
210 |
4 |
Domed - Domed |
8.9 |
| Center Drop Face |
127 |
220 |
4 |
Domed - Domed |
10.8 |
| Center Drop Face |
140 |
240 |
4 |
Domed - Domed |
13.5 |
| Center Drop Face |
176 |
260 |
4 |
Domed - Domed |
17 |
| T45 |
Flat Triangle Face |
102 |
155 |
4 |
Domed - Domed |
5.5 |
| Flat Triangle Face |
115 |
165 |
4 |
Domed - Domed |
7.5 |
| Center Drop Face |
89 |
155 |
4 |
Domed - Domed |
4.15 |
| Center Drop Face |
102 |
155 |
4 |
Domed - Domed |
5.8 |
| Center Drop Face |
127 |
165 |
4 |
Domed - Domed |
7.7 |
| EL60 |
Flat Face |
102 |
180 |
2 |
Domed - Domed |
5.4 |
| Center Drop Face |
115 |
210 |
4 |
Domed - Domed |
8.9 |
| Center Drop Face |
127 |
220 |
4 |
Domed - Domed |
10.8 |
| Center Drop Face |
140 |
240 |
4 |
Domed - Domed |
13.5 |
| Center Drop Face |
176 |
260 |
4 |
Domed - Domed |
17 |
To ensure your goods arrive in immaculate condition, we employ professional, eco-friendly, and highly efficient packaging solutions. Our priority is safety and convenience throughout the shipping process, ensuring a seamless transition from our facilities to your hands, exemplifying our commitment to excellence.
Changsha DTH Drill Construction Machinery Co., Ltd., established in 1996, boasts a stellar legacy in the drilling tools industry. Originally serving as the designated processing hub for down-the-hole drilling tools within the Changsha Institute of Mining Research, our company partners with prestigious institutions such as the Chinese Academy of Sciences' Institute of Metal Research. Our collaborations extend globally, including esteemed partners like NIMS in Japan, the University of Queensland in Australia, and EMPA in Switzerland.
As a comprehensive service provider, we specialize in water well drilling machines, coring drilling machines, reverse circulation drilling machines, tunnel drilling machines, and drilling tools. Our unwavering dedication to excellence is reflected in our free one-stop solutions tailored for various construction scenarios, from mines to water wells and building pile foundations. Globally recognized by SGS, TUV, and Made in China, our products serve over 80 countries. Our esteemed founder, honored by Stanford University as among the top 2% of global scientists in 2022 and 2023, exemplifies our mission to simplify and enhance drilling efficiency for everyone.
1. Are you exact manufacturer or just trading company?
We are both, we have our own factory. And also have many long-relationship factories.
2.What is your minimum order quantity?
Our MOQ are ipc or 1 complete set, the price may rely on the order quantity. We are welcome your sample orderto testing our quality.
3. Can you accept OEM & ODM?
Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly.As we have our own R&D team and the team leader is Dr.Zhao minachun who has been alwaysin the material research and drawing desian of drilling tools for 25 years. And he had designedthe world's biggest top hammer bit and DTH hammer bit, highly praised by the users.
4.How about the delivery time?
It depends, generally it takes about 15-25. lf have stocks, Usually only 5-10 days if in stock
5. Can l have a visit to your factory before the order?
Sure, welcome, kindly contact us for address details and time schedule.
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