API Standard 8 1\2' IADC 437 Oil Rig Drill Bit Manufacturer For Mining

API Standard 8 1\2' IADC 437 Oil Rig Drill Bit Manufacturer For Mining

Product description:

API Standard 8 1/2 IADC 437 Oil Rig drill bit Manufacturer for mining

Company profile

Guangtong company was built in 1983, over the years by a number of the majority of customers, our company has been in the customer first, quality first, the purpose and dedication to customer service, domestic and foreign customers alike. I long for drilling: drill pipe, drill collars, Elevators, mud, hanging clamp, three-cone tipped, steel tooth bit, model complete, quality assurance, reasonable price

Since founding the company, always adhere to market-oriented, innovation as a starting point, to provide customers with better and more comprehensive product; reduce costs for the drilling industry. I am honest and trustworthy company Yinuoqianjin principles, domestic and foreign customers alike. Our growth and success, dance countersunk head with your love and support staff of our company will first-class management, first-class quality, excellent service as our eternal pursuit.

Product introduction

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″ (215.9mm)



Bearing Type

Elastomersealed journal bearing

Thread Connection

4 1/2 reg pin

WOB (KN/ mm)


RPM (r/ min)


Applicable Formations

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

Detailed Description of the four types TCI Bits (Tungsten Carbide Insert Bit)

1. Metal-face sealed bearing TCI Bit

Cutting Structure

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

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.

Sealed Bearing Structure

1. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
2. The advanced metal seal package will improve the reliability and durability of bearing seal.

Main Type Available

Size: 6', 6 1/2', 7 1/2', 8 1/2', 9 1/2', 9 5/8', 9 7/8', 12 1/4', 17 1/2', etc.
IADC Code: 4- Series, 5- Series, 6- Series, etc.


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.


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 .