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| CUTTING STRUCTURE |
| Off-wedge on outer rows, spoon on inner rows. |
| Designed for low compressive strength, soft formations, such as shale, soft limestone, interlayer dolomite, coal seam, etc. |
| Compressive strength: 15,000-23,000 psi |
| SHIRTTAIL PROTECTION |
| Hard welding and wear resistant carbide protection on shirttail and lug back. |
| PRODUCT SPECIFICATION |
| IADC Code: 537 |
| Bearing Type: Journal bearing/Metal sealing ring |
| Circulation Type: Mud |
| Cutting Structure: |
| Inner rows: Spoon |
| Outer rows: Off-wedge |
| Gage bevel Protection: Ovoid |
| Pin Connection: 6 5/8″ API REG |
| Bit Diameter: 311.15（0.8-0）mm |
| Product Weight: 98Kg |
| OPERATING SUGGESTIONS |
| Weight on Bit: 0.4--1.05 kN/mm |
| Rotational Speed: 110-40 rpm |
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Phone: +86 0512 62850656
+86 0512 62851667
Fax: +86 0512-62851611
Email: info@shareate.com
Address: No.6 Weixi Road, Suzhou Industrial Park
