Wholesale API M137 8.5 inches diamond drill bits for very hard rocks drilling in the stock from China supplier. Regular sizes of PDC cutters are 8mm, 13mm, 16mm, 19mm. Regular blades quantities of PDC bits range from 3 to 9. The smaller PDC cutters the harder rocks it can drill, the more blades quantity the harder it can drill. But penetration rate will be slower down after adopting smaller cutters and more blades, so choosing the best configuration of PDC bits is very important before starting projects. Drillers should consider: 1> Matrix body or steel body. 2> Cutter sizes and blades quantity. 3> Double rows cutters or single row. 4> Spiral or normal gauge protection, gauge length, gauge protection materials. 5> Nozzles.1. How to get an exact quotation? Answer: Please send us detailed information as below: -Tricone bits(Diameter, IADC code) -PDC bits(Matrix or Steel body, blades quantity, cutter size, etc) -Hole opener(Diameter, size of pilot hole, hardness of rocks, thread connection of your drill pipe, etc.) -Roller cutters(Diameter of cones, model number, etc.) -Core barrel(Diameter, quantity of cutters, connection, etc.) A simple way is sending us photos . Besides above, if possible please provide more information as below: Drilling depth in vertical well drilling, Drilling length in HDD, hardness of rocks, Capacity of drill rigs, application(oil/gas well drilling, or water well drilling, or HDD, or foundation). Incoterm: FOB or CIF or CFR, by plane or ship, port of destination/discharge. The more information provided, the more exact quotation will be offered. 2. What is the quality control for your products? Answer: All of our production are in lines of API rules and ISO9001:2015 strictly, from signing contract , to raw materials, to each production processes, to product finish, to after-sale service, each processes and sections are in accordant with standard. 3. About lead time,payment terms, delivery ? Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order. We accept all regular payment terms including L/C, T/T, etc. We are near from Beijing airport and Tianjin(Xingang) seaport, transportation from our factory to Beijing or Tianjin only takes one day, fast and very economical inland charges. 4. What is the history of Far Eastern ? Answer: The drilling bits business was started at year 2003 only for China domestic requirement, the name Far Eastern was started from year 2009, now Far Eastern has exported to more than 35 countries and areas. 5. Do you have Referenced Letters /Recommendation Letters from old customers? Answer: Yes, we have many referenced letters/recommendation letters issued by old customers who would like to share our stories.
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 | |
| Number of blades/Size | 7 blades 8.5" |
| Primary Cutter size | 13mm |
| Nozzle Qty | 6 |
| Gauge Length | 2.2 inches |
| Operating Parameters | |
| WOB (Weight On Bit) | 4,494-22,470 lbs |
| 20-100KN | |
| RPM(r/min) | 60~260 |
| Flow Rate(lps) | 22-35 |
