Wholesale mining well tricone drilling bits with discounted price from China factory. Bit Description: IADC:745-TCI sealed roller bearing bit with gauge protection for extremely hard and abrasive formations. Compressive Strength: 100-150 MPA 14,500-23,000 PSI Ground Description: Hard, well-compacted rocks such as :hard silica limestones,quarzite streaks,pyrite ores,hematite ores,magnetite ores,chromium ores,phosphorite ores,and granites. We can offer mining tricone rock drill bits in a variety of sizes and most of IADC Codes.BIT DESCRIPTION: IADC:745-TCI sealed roller bearing bit with gauge protection. CUTTING STRUCTURE: Ovoid on gage and inner rows. Designed for extremely hard and abrasive formations with high compressive strengths such as granite,limestone,sandy sandstone,dolomite and chert. Application: 46,000-56,000Psi SHIRTTAIL PROTECTION: Hardmetal and wear resistant carbide on shirttail lip and lug. PRODUCT SPECIFICATION: IADC Code:745 Bearing Type:Roller-Ball-Roller-Thrust Button/Sealed Bearing Circulation Type: Jet Air Cutting Structure Inner and Nos Rows:Ogive and ovoid Gage Rows:Ovoid Gage Bevel Protection:Round Pin Connection:6 5/8" API Metric Bit Diameter:311mm Product Weight:98Kg The hardness of rock maybe soft,medium ,medium hard ,hard and very hard.The hard ness of one same rock maybe also a little different,such as : Limestone,sandstoneshale has soft limestone,medium limestone and hard limestone,medium sandstone and hard sandstone. So it is import to choose the siutable rock drilling bits for the different drilling project. We have 15 years sevices experience to produce the drill bits and advanced drilling solutions for different drilling job.We have exported to more than 30 countries ,such as in the Australasian and South American Markets. We can offer different mining drill bits with the sizes ranging from 6 3/4" to 16". 
| Basical Specification | |
| IADC Code | IADC745 |
| Size of Rock Bit | 12 1/4 inches |
| 311mm | |
| Thread Connection | 6 5/8” API REG PIN |
| Product Weight: | 98Kgs |
| Bearing Type: | Roller-Ball-Roller-Thrust Button/Sealed Bearing |
| Circulation Type | Jet Air |
| Operating Parameters | |
| Weight on Bit: | 49,000-85,750Lbs |
| Rotary Speed: | 90-60RPM |
| Air Back Pressure: | 0.2-0.4 MPa |
| Ground Description: | Hard, well-compacted rocks such as: hard silica limestone, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores, and granite. |
