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| Categories | Diamond Core Bits | 
|---|---|
| Place of Origin: | Changge,China | 
| Brand Name: | Huanghe Whirlwind | 
| Model Number: | HHW | 
| Certification: | IN | 
| Supply Ability: | 10000 Piece/Pieces per Day | 
| MOQ: | 10 pieces | 
| Price: | $300.00 - $560.00/pieces | 
| Warranty: | 1 years | 
| Customized support: | OEM, ODM | 
| Type: | Center Drill Bit, Core Drill Bit, Countersink Drill Bit, Gun Drill Bit, Indexable Drill Bit, Spade Drill Bit, Twist Drill Bit, Other | 
| Use: | Well Drilling | 
| Finish: | Other, Plain | 
| Welding Method: | Laser welding, high frequency | 
| Experience: | 25 years | 
| Guarantee period: | 1years | 
| Application: | coal mining, geological exploitation, water well | 
| Processing Type: | Casting & forging | 
| Advantage: | High abrasion&impact resistance | 
| Matrix Material: | No 45 Steel | 
| Material: | diamond & sintered carbide | 
| Port: | qingdao shanghai shenzhen | 
| Company Info. | 
| Henan Huanghe Whirlwind International Co.,Ltd. | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 




| Bit Type | 6” | 8-1/2” | 8-1/2” | 12-1/4” | 17-1/2” GM1606T | 
| IADC Code | M423 | M432 M332 | M323 | M432 M332 | M323 | 
| Blade | 5 | 6 | 8 | 6 | 6 | 
| Cutter Size (mm) | Φ13MM | Φ16MM | Φ13MM | Φ16MM | Φ16MM Φ13MM | 
| Nozzle Qty/Type | 5 | 13.2 | 9.6 | 30.78 | Φ16×58 Φ13×81 | 
| Nozzle Qty/Type | 3NZ | 6NZ | 4NZ | 6NZ | 8NZ | 
| Gauge Length | 1.5” | 2.2” | 2” | 2.5” | 2~4" | 
| Connection | 3-1/2” API REG | 4-1/2” API REG | 4-1/2” API REG | 6-5/8” API REG | 7-5/8” API REG | 
| Make up Torque(KN.m) | 9.5~12 | 16~22 | 16~22 | 38~43 | 46~54 | 
| Rotary Speed(rpm) | 60-260 | 60-260 | 60-260 | 60-260 | 60-260 | 
| Weight on Bit(KN) | 8-50 | 20-100 | 20-100 | 30-140 | 30-200 | 
| Max.WOB(KN) | 90 | 130 | 130 | 180 | 240 | 
| Flow Rate(lps) | 10-30 | 22-35 | 22-35 | 38-70 | 45-80 | 






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