Hunan Tianying Drilling Machine Manufacturing Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 1000 Pcs Per Month |
| Delivery Time | 10-15 Working Days |
| Packaging Details | Wooden Case , Signle Item Per Case |
| Application | Hard and abrasive formations |
| Thread Type | API 4 1/2" REG & API 6 5/8" REG |
| Bearing type | Sealed Bearing |
| Material | 15MnNi4Mo steel，Tungsten carbide and Tomlin grease |
| Tooth | Tungsten carbide insert |
| Machine type | Drilling Tool |
| Brand Name | Tianying |
| Model Number | IADC 745 |
| Certification | ISO9001 |
| Place of Origin | Hunan CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1000 Pcs Per Month |
| Delivery Time | 10-15 Working Days | Packaging Details | Wooden Case , Signle Item Per Case |
| Application | Hard and abrasive formations | Thread Type | API 4 1/2" REG & API 6 5/8" REG |
| Bearing type | Sealed Bearing | Material | 15MnNi4Mo steel，Tungsten carbide and Tomlin grease |
| Tooth | Tungsten carbide insert | Machine type | Drilling Tool |
| Brand Name | Tianying | Model Number | IADC 745 |
| Certification | ISO9001 | Place of Origin | Hunan CHINA |
| High Light | dth button bits ，rotary blast hole bits | ||
Cost Effective Blast Hole Drill Bits With Tungsten Carbide Insert For Mining Industry
Click here for catalogueTCI DRILL BIT.pdf
All bits the above are manufactured according to strict standards, set forth by the American Petroleum Institute (API).
And classified according to characteristics set forth by the International Association of Drilling Contractors (IADC).
How to read an IADC Code properlyHow To Read IADC 1.pdf
| First Digit | TOOTH |
| 1 | Steel tooth bits for Soft Formation |
| 2 | Steel tooth bits for Medium Formation |
| 3 | Steel tooth bits for Hard Formation |
| 4 | TUNGSTEN CARBIDE INSERT BITS For varying formation hardness with 4 being the softest and 8 the hardest. |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| Second Digit | FORMATION |
| 1 | 1,2,3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest. |
| 2 | |
| 3 | |
| 4 | |
| Third Digit | BEARING/SEAL TYPE |
| 1 | Standard open bearing roller bit |
| 2 | Standard open bearing roller bit, air-cooled |
| 3 | Standard open bearing roller bit with gauge protection |
| 4 | Sealed roller bearing bit |
| 5 | Sealed roller bearing bit with gauge protection |
| 6 | Journal sealed bearing bit |
| 7 | Journal sealed bearing bit with gauge protection |
| Fourth Digit | ADDITIONAL FEATURES |
| A | Air application |
| R | Reinforced welds |
| C | Center jet |
| S | Standard steel tooth |
| D | Deviation control |
| X | Chisel insert |
| E | Extended jet |
| Y | Conical Insert |
| G | Extra gage protection |
| Z | Other insert shape |
| J | Jet Deflection |
What is Blast Hole Drill Bits?
In the mining industrial, blast hole drilling is very important to achieving the required product or outcome. Drilling suitable holes allowing explosive charges to be placed down the holes. And then to blast large areas making them more manageable and easier to remove.
Bits thread are manufactured according to API standards.
| BIT SIZE | BIT WEIGHT | THREAD TYPE(API) |
| 7 7/8” (200mm) | 36KG | 4 1/2” REG |
| 9 7/8” (251mm) | 67KG | 6 5/8” REG |
| 11” (280mm) | 76KG | 6 5/8” REG |
| 6 5/8” (311mm) | 100KG | 6 5/8” REG |
Advantage:advantage of tci drill bit.pdf
Our Company
Hunan TianYing Drilling Machine Manufacturing Co., Ltd. was founded in 2003, located at Zhuzhou, China, the word famous tungsten Carbide production base. We are a professional producer, and supplier of Rock Drilling Bits, all the bits crafted from the finest material available in today's market.TCI(Tungsten Carbide Insert) types are our main products, available in many sizes, designed for soft to very hard formations. With years of study and refining, our Rock Drilling Bits are preceded by extensive R&D, field tested, and backed by our unmatched commitment to service and support, our products exported to all over the world, such as Australia, North America, Middle East, North Africa and Southeast Asia etc. Today, Tianying's products have been favored and respected by domestic and foreign customers. We will continue to serve our customers with high quality products, excellent service and reasonable price.
Tianying's Best Service
Come rain or shine, on work days or holidays, at home or abroad, our services are there when you need them. We believe you will be entirely satisfied with our working attitude and diligence.
Tianying promises that once you choose us, our company is there ready to respond with the first arrival solution any time, anywhere.
Don’t see the bit you are looking for? Give us a call, we can customize any bit to fit your unique circumstances.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1958
Total Annual:
8000000-10000000
Employee Number:
100~200
Ecer Certification：
Site Member
Professional. Duarable, Efficient, TIANYING TCI Tricone Bit! Hunan Tianying Drilling Machine Manufacturing Co., Ltd.is one state-appointed factory of mining tools especially for tricone bit. we are established in 1958 and located at Zhuzhou city of Hunan provice. one fam... Professional. Duarable, Efficient, TIANYING TCI Tricone Bit! Hunan Tianying Drilling Machine Manufacturing Co., Ltd.is one state-appointed factory of mining tools especially for tricone bit. we are established in 1958 and located at Zhuzhou city of Hunan provice. one fam...
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