1.Specification:9 7/8'' 250.8mm
2.IADC:437
3.material:tungsten carbide
4.WOB:0.35~0.90 KN/mm
5.sealing:metal or rubber ring
Port: Tianjin Port
Minimum Order Quantity: 1 Piece/Pieces carbide tipped drill bit
Supply Ability: 5000 Piece/Pieces per Month carbide tipped drill bit
Payment Terms: L/C,T/T,Western Union
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Packaging Detail: carton, wooden box,steel box,or as your requirements
Delivery Detail: within 7 days
9 7/8'' carbide tipped drill bit
1. Advantages of our products:
(1) Strong resistance to abrasion and impact resistance.
(2) Cutter's quality performance is good ,
(3) long work life
(4) stocks adequate, time delivery
(5) rich experience in drill bit
(6) good after-sales service
(7) High quality, competitive price
2. Detailed Description Of This Product:
| Size | 9 7/8'' 250.8mm |
| Pin shank size | 6 5/8 REG |
| Bit type | HJ437 |
| IADC Code | 437 |
| types of bearing | jounmal beanngs |
| types of sealing | metal ringside or rubber rings |
| Application formation | very soft with low compressive strength and high drillability, such as shale, clay, sandstone,soft limestone, salt bed and gypsolyte, etc |
| Main characteristics of bit(cutting structure) | Large radius offset crested scoop compacts in inner row, wedge compacts in outer row, high compact exposure and inequable spaced compacts arrangement |
| Normal WOB KN/mm (bit dia.) | 0.35~0.90 |
| Rotary speed (rpm) | 280~60 |
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