high quality 8 1\2'(215.9mm) TCI tricone drill bit

high quality 8 1\2'(215.9mm) TCI tricone drill bit

Product description:

Quick Details

  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: Fist
  • Model Number: IADC537
  • Type: tricone drill bit
  • Material: tungsten carbide
  • Use: Well Drilling
  • Processing Type: Forging
  • Bearing Type: Elastomer sealed slide bearing
  • Color: Blue
  • Machine Type: Drilling Tool

Packaging & Delivery

Packaging Details: wooden box; steel box; or as your requirements
Delivery Detail: within 7 days after conform order


1 high quality and inexpensive
2 meet with API&ISO
3 timely delivery
4 size arrange from 6 to 17 1/2
5 more inventory

1. Advantages:

1. Cutting Structure

The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.

2. Gauge Structure

Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.

3. Bearing Structure

High precision bearing with two thrust faces. Balls lock the cone. Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.

4. Seal and Lubrication

The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.


Size 8 1/2 (215.9mm)
Bearing Type elastomer sealed slide bearing
WOB (kN/ mm) 0.50~1.05
RPM (r/ min) 110~40
Applicable FormationsMedian soft formations and harder abrasives sandwich with low low compressive, such as argillite, anhydrite, cotton rock, sandstone, etc.

3. Packing:

4. Certification:

5. Payment:

T/ T and L/ C are acceptable

6.Available products:




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


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


Alloy steel , carbide


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


Canada; USA; Middle east ; Africa; Europe


7.FAQ (Frequently Asked Questions)

1) How to order the products?

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.

8. Transportation

9. If you have any further questions, please feel free to contact us. I am always glad to be service to you.