Wholesale API 8 1/2 inches PDC reaming bits for hard rocks drilling in the stock from China OEM factory. 6" pilot bit is fitted in front as guider, 8 1/2" is the reaming diameter and exact diameter of PDC bit. Long profile increases stable strength, strong ability of gauge protection is no concern on shrinkage in drilling hard rocks.Far Eastern are factory specializes in drill bits,such as PDC bits, tricone bits,HDD hole opener,Foundation roller cutters for different applications. The application including oil field,natural gas,geological exploration,driectional boring,mining ,water well drilling ,HDD, construction,and foundation. As a leading drill bits factory in China,increase the drill bit working life is our target. We always try to improve the bits with high penetration rates.Our purpose is to sell the high quality with the lowest price.Far eastern drilling quality and technology will help you to achieve more !
| Product Specification | |
| Bit Diameter | 8 1/2" |
| Body Type | Steel |
| Thread Connection | 4 1/2 API REG PIN |
| Cutters Type & Quantity | 13mm,16mm |
| Back Reaming Cutters Number | 13mm |
| Gauge Protection Materials | Tungsten Carbide,PDC cutter |
| Gauge Protection Type | Regular |
| Number of Nozzles | 5pcs ; 3pcs |
| Operating Parameters | |
| WOB (Weight On Bit) | 4,494-13,482 lbs |
| 20-60KN | |
| RPM(r/min) | 150~300 |
| Flow Rate(lps) | 10-25 |
