8 1\2' IADC 437 High Quality Good Function Hole Opener Manufacturer

8 1\2' IADC 437 High Quality Good Function Hole Opener Manufacturer

Product description:

8 1/2 IADC 437 High Quality Good function hole opener Manufacturer

Product information

Good function hole opener Manufacturer

Tricone bit Cutting structure: very long widely spaced , chisel-shaped inserts and considerable cone axis offset against center line of bit ensure very high penetration rate . To secure the bit from diameter loss, the gage protection inserts have got shorter length and greater angle of the top. Formations: long intervals of very soft poorly compacted shales , sandstone, clays, salts and soft li mestones. Size and IADC available: 3 3/4 to 26 IA415435445417437517537617

The 437 tci bits are used to drill low compressive strength, very soft formations . TCI bits maximize the use of bothconical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design, combined with maximum cone offset, results in high bit penetration rates . The deep intermesh of cutter rows prevents bit bailing in sticky formations.


8 1/2″ (444.5mm)



Bearing Type

Elastomersealed journal bearing

Thread Connection

4 1/2 reg pin

WOB (KN/ mm)


RPM (r/ min)


Applicable Formations

Hard formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.

Company profile

Guangtong company was founded three decades, and always adhere to market-oriented, innovation as a starting point, to provide customers with a more comprehensive product for the drilling industry to reduce costs. Our staff put first-class management, first-class quality, excellent service as our eternal pursuit. The main products are drilling scraper, drill collars, fittings, assembly reamer.

Our company is specializes in drill bits, drill pipe, Mud pump and stabilizers for water well, oil field, construction, geothermal, directional boring and underground foundation work all over the world. Our purpose is to sellthe best quality products at the lowest possible price. We are a professional supplier of new and used (rebuilt) drill bits used for oil field, water well. Including tricone bits. PDC bits and drill pipe. Various of model and dimension available. Good condition and reasonable price.


1. High-strength, high flexibility, high temperature, high wear resistance.

2. High-precision metal seal.

3. Locking roller ball, to adapt to high-speed.

4. The use of high strength high toughness carbide teeth.

5. Hours in the rotary cone bit with the impact, crushing and shearing the role of broken rock.

6. Cone bit to adapt to the soft, medium and hard of various strata.

7. Reasonable price and long working life.

Avaliable models


Button/ Insert tooth bit Milled/ Steel tooth bit


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

Picture show

Any inquiry is welcomed here .

1) How to send money to us ?

We can send you our bank account information after the contract is made . By T/ T , Western union ....

2) What is the MOQ ?

Small trial order is acceptable , like 1pc, 2 pcs....

3) Inspection is possbile ?

Yes, you are welcome to our company at any time or you can make inspection through Third inspection agent , like SGS , BV and so on .

4) How to transport the bits ?

By sea , by air , by DHL, by UPS and so on ....

Do you have any questions ? Please don't hesitate to ask me and you will get the satisfactory response once you contact us .