| Packaging Details: | wooden box; steel box; or as your requirements |
|---|---|
| Delivery Detail: | within 7 days after conform order |
1. TCI tricone bit (high toughness and durability suitable for different rock formation)
Advantages:
(1) our company had done this business for many years and won a good reputation for our top quality product excellent service.
(2) we produce the drill bits according to our customers requirements strictly with advanced equipment to make the quality perfect
(3) Quick Details
Size | 12 1/4'' |
IADC | 517 |
Bearing Type | Elastomer sealed journal bearing |
Thread Connection | 4 1/2 reg pin |
WOB (KN/ mm) | 0.35~1.0 |
RPM (r/ min) | 140~60 |
Applicable Formations | Medium to hard formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
Circulation system | Mud pump |
(4) Main features
Cutting Structure | High extension balling resistant cutting structure with forged teeth and self-sharpening tooth hardmetal for high penetration rates and long life in soft abrasive formations. | |
Bearing Package
| Traditional ball and roller bearing, utilizing thrust buttons for axial bearing loads, gives reliable performance under a variety of rotary speeds and loads. | |
Premium Hardfacing | The tooth surfaces are fortified with premium, high-density tungsten carbide hardfacing applied by oxy-acetylene welding for superior wear resistance. | |
Center Jet Nozzle | (feature) | A fourth interchangeable jet is installed in the center of the bit to reduce bit balling or provide extra flow capacity. (Available only in 8 3⁄8 bits and larger.) |
Forged Teeth | Challenger steel tooth bits 13 (349.2 mm) and smaller are manufactured with Varel's exclusive forged tooth process. This innovative method provides stronger, more impact-resistant teeth when compared with milling because the metal flow lines from the forging process follow the tooth contours instead of being cut by machining. | |
2. Photos of Profile & Details
good bearing
protection leg
3. Certification: API

4. Packing Information
5. Payment Terms
T/ T and L/ C are acceptable. (30% advanced payment after sign the contranct , then 70% payment after see the B/ L)
6. Available Sizes
Model | TCI BIT, STEEL TOOTH BIT |
IADC CODE | 116 117 12 6127 136 137 216 217 226 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 |
417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535 | |
available sizes: | From 2 7/8 to 26' larger sizes for hole opener bit , reamer bit |
advantage | most favourable price and best qualtity |
bearing type: | sealed bearing and non-sealed bearing HJ (metal sealed journal bearing) HA (rubber sealed journal bearing aircooled bearing type |
Formation or layer | soft ; medium soft ; hard; medium hard; very hard formation |
Button size (extra features) | Button bit, saw teeth 1) Y-Conical teeth 2) X-chisel teeth 3) K- wide teeth 4) G- Gague protection |
Material | Alloy steel , carbide |
Packing | Wooden case or steel case, or as your order |
Payment terms | T/ T; L/ C; Western union |
Delivery terms | By sea or by air |
Delivery time | Within 7 to 15 days |
Market |
Canada; USA; Middle east ; Africa; Europe
|
7. We can supply more

8. Transportation

9. FAQ (Frequently Asked Questions)
1) How to order the products?
Answer:
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2) About lead time and shipping time?
Answer :
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.
3) Can I expect a quality products?
Answer :
Yes. All our activities are accredited to ISO 9001: 2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
10. Pls add these informations in your inquiry.
1, bits size
2, bits IADC code
3, layer information
4, bits quantity
11.If you have any further questions, please feel free to contact us. I am always glad to serve for you.
