You are here:
You are here:
| CUTTING STRUCTURE |
| Chisel on gage, conical 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: 4,000-7,000 psi/27-48 MPa |
| SHIRTTAIL PROTECTION |
| Hard welding and wear resistant carbide protection on shirttail lip and lug |
| PRODUCT SPECIFICATION |
| IADC Code: 412 |
| Bearing Type: Roller-Ball-Roller-Thrust Button/Open Bearing |
| Circulation Type: Jet Air |
| Cutting Structure: |
| Inner and Nose Rows: Conical |
| Gage Rows: Chisel |
| Auxiliary Carbide: Spherical |
| Pin Connection: 3 1/2″ API REG |
| Metric Bit Diameter: 159 mm |
| Product Weight: 44 lbs/20 kg |
| OPERATING SUGGESTIONS |
| Weight on Bit: 6,250-12,500 lbs/ 2.8-5.7 T |
| Rotational Speed: 90-120 rpm |
| Air Back Pressure: 29-58 psi/0.2-0.4 MPa |
About Us
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
