Wholesale API 8 1/2 inches roller cutters IADC637 API standard for hard rocks core barrel in the stock from China OEM manufacturer. Bearing Type:Rubber Sealed Bearing & Metal Sealed Bearing Tooth type: Conical Button tooth ,Chisel Insert tooth IADC code:417,437,517,537,617,637,737,837 Application:HDD rock reamer,hole opener ,core barrel with roller cone Drilling Formation:Meidum hard ,hard rock,very hard rock Advantage: It is full face drilling design. Vacuum grease reservoir. Special oil pressure balancing Higher temperature sealed. Longer drilling life. More saving costs. Highly cost-effective. Small diameter for soft to hard formation. Straight shank for welding easily.
Far Eastern are factory specializes in drill bits,such as roller cone bit, tricone roller cone bit, 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 !| one Size | 133mm |
| Bearing Type | Sealed Journal Bearing |
| Inserts/Teeth Shape | Conical-ball |
| Inserts/Teeth(Cone 1) | 49*13mm |
| Inserts/Teeth(Cone 2) | 50*13mm |
| Inserts/Teeth(Cone 3) | 45*13mm |
| Cone Material | 15MnNi4Mo |
| Arm Material | 15CrNiMo |
| Grease Compensation System | Available |
| Gauge Protection | Available |
| Shirttail Protection | Available |
| Operating Parameters | The roller cutters used for hard formations with high compressivestrength,such as sandstone,hard shale,dolomite,hard gypsum,chert, granite,etc . |
