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| CUTTING STRUCTURE |
| Spherical on gage, double spherical on inner rows. Designed for high compressive strength, hard and abrasive formations, such as granite, limestone, sandstone, dolomite. Compressive strength: 37,000-44,000 psi/255-303 MPa |
| SHIRTTAIL PROTECTION |
| Hard welding and wear resistant carbide protection on shirttail lip and lug |
| PRODUCT SPECIFICATION |
| IADC Code: 715 |
| Bearing Type: Roller-Ball-Roller-Thrust Button/Sealed Bearing |
| Circulation Type: Jet Air |
| Cutting Structure: |
| Inner and Nose Rows: Double spherical |
| Gage Rows: Spherical |
| Auxiliary Carbide: Flat |
| Pin Connection: 6 5/8″ API REG |
| Metric Bit Diameter: 311mm |
| Product Weight: 215 lbs/98 kg |
| OPERATING SUGGESTIONS |
| Weight on Bit: 49,000-73,500lb/22.2-33.3T |
| Rotational Speed: 60-90 rpm |
| Air Back Pressure: 29-58 psi/0.2-0.4 MPa |
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Contact Us
Phone: +86 0512 62850656
+86 0512 62851667
Fax: +86 0512-62851611
Email: info@shareate.com
Address: No.6 Weixi Road, Suzhou Industrial Park
