| Categories | Hard Rock Drill Bits |
|---|---|
| Brand Name: | Tianying |
| Model Number: | IADC 835 9 7/8" |
| Certification: | ISO9001 |
| Place of Origin: | CHINA |
| MOQ: | 1 |
| Price: | USD 1800 |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 1000 sets per month |
| Delivery Time: | 30-35 days |
| Packaging Details: | Wooden case |
| Material: | steel and tungsten carbide, grease |
| Size: | 9 7/8 inch or 251mm |
| Thread Connection: | API 6-5/8'' REG |
| Product Weight: | 67kg |
| Weight On Bit: | 47,250-77,500 |
| Rotary Speed: | 50-80 |
| Air Back Pressure: | 0.2-0.4MPA |
Applicable formation: very hard and abrasive formation such as quartz sandstone, granite, basalt, magnetite, taconite
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