CUTTING STRUCTURE
Chisel on gage, double spherical on inner rows
Designed for very soft formations with low compressive strength and high friability such as shale, soft limestone, sandstone, gravel clay, soft dolomite, coal ore.
Compressive strength: 6,000-9,000 psi/41-62 MPa
SHIRTTAIL PROTECTION
Hard welding and wear resistant carbide protection on shirttail lip and lug

Product Specifications
Diameter	9 7/8" 251mm
Bearing Type	Roller-Ball-Roller-Thrust Button/Sealed Bearing
Drilling cycle type	Jet Air
Connection thread ty	6 5/8'' REG
Operation Parameters
Rotary speed (r/min)	90-120 r/min
Weight on Bit (KN)	9,875-39,500 lbs/ 4.5-17.9 T
Air Back Pressure	29-58 psi/0.2-0.4 MPa

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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