The currently used version was introduced in 1992 and incorporates criteria cooperatively developed by drill bit manufacturers under the auspices of the Society of Petroleum Engineers.

Adopt high strength and high wear resistance carbide inserts.
New journal bearing structure greatly prolongs the working life of the bearing, and has the ability to withstand medium bit pressure and adapt to high speed.
The improved performance of the new fluorinated rubber seal ring makes it more suitable for the working environment and service parameters of drill bits
Adopt new sealing structure to match the bearing structure, which greatly improves the service life of drill bit
T feature, between the outer rows and cone back rows inserted a protection row carbide inserts.
K feature, the inner row adopts wide-topped spoon insert, which increases the cutting width of the insert and improves the drilling efficiency.

Product Specifications
Diameter	12 1/4" (311mm)
IADC	517
Bearing Type	Journal bearing/flat rubber seal ring
Drilling cycle type	Mud circulation
Connection thread	6 5/8'' REG
Formation	soft formations with low compressive strength and high drill-ability, such as shale, clay, sandstone and soft limestone.

Certifications

Package&Shipping

FAQ

Q: You are a trading company or manufacturer ?

A: Manufacturer, We are a 100% real factory with over 10 years' experience in water/oil/gas wells Drill Bits.

Q: How about your products ?

A : Both of tricone bits and PDC bits strictly conform to API 7 requirements and ISO9001. we will do kinds inspections before delivery, also cover for after-sales service.

Q: Package Methods ?

A: Normally wooden case, also can be steel box; can be customized if need.

Q: Payment Terms ?

A: we accept T/T, L/C, Paypal, Western Union, etc.

Q: Can I visit your factory ?

A: Yes, we welcome you to our factory all the time, will send invitation letters if need; also can show our workshop and warehouse online.

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