Qingdao Nokunda Drilling Tools Co., Ltd.

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Qingdao Nokunda Drilling Tools Co., Ltd.  

 No. 15 Donghai Xi Road, Shinan District, Qingdao City, Shandong Province, China

Whatsapp: +86 13792983690

Wechat: +86 13792983690 

Email: [email protected]

 

 

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6 3/4" NF532

6 3/4" NF532
Product Name : 6 3/4" NF532
Directions

CUTTING STRUCTURE

Conical on gage and  inner rows.
Designed for medium soft formations with low compressive strength, such as shale, soft limestone, interbedded dolomite, coal ore.
Compressive strength: 15,000-23,000 psi/103-158 MPa

 

SHIRTTAIL PROTECTION

Hard welding and wear resistant carbide protection on shirttail lip and lug

 

PRODUCT SPECIFICATION

IADC Code:  532

Bearing Type: Roller-Ball-Roller-Thrust Button / Open air Bearing

Circulation Type: Jet Air

Cutting Structure: 

Inner and Nose Rows: Conical

Gage Rows: Conical

Gage Bevel Protection: Ovoid

Pin Connection: 3 1/2″ API REG

Metric Bit Diameter: 172 mm

Product Weight: 48 lbs/22 kg

 

OPERATING SUGGESTIONS 

Weight on Bit: 13,500-33,750lb/6.1-15.3T

Rotary Speed: 80-110rpm

Air Back Pressure: 29-58 psi/0.2-0.4 MPa

 

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