8 1/2 IADC 637 Oil Rig drill bit Manufacturer that customer trust
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.
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 637 bits can be used to drill hard and abrasive formations . Wearresistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of bemisphericalshaped inserts are used in all rows to provide cutter durability and long life
8 1/2″ (215.9mm)
Elastomersealed journal bearing
4 1/2 reg pin
WOB (KN/ mm)
RPM (r/ min)
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
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
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.
Contact me at any time
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 .