New steel tooth bit design, tooth surface, back cone hard surface enhancement, high tooth exposure, back cone insert teeth, between the back cone tooth and the outer row tooth increased a row of trimming teeth.
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.
Updated O-shaped rubber sealing ring is more suitable for the working environment and operation parameters of roller cone bit.
New sealing structure makes the sealing performance match with the bearing, thus greatly prolongs the service life of the drill bit.

Product Specifications
Diameter	12 1/4" 311mm
Bearing Type	Journal bearing/Rubber sealing ring
Drilling cycle type	Mud circulation
Connection thread ty	6 5/8'' REG
Operation Parameters
Rotary speed (r/min)	80-150 r/min
Weight on Bit (KN)	0.35～0.9 kN/mm
Formation	very soft formations with low compressive strength and high drillability, such as soft shale, clay and salt rock.

About Us

Certifications

Package&Shipping

FAQ

Q: You are a trading company or manufacturer ?

A: Manufacturer, We are a 100% real factory with over 20 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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