1.Product description
Specifications of drill bit adaptersÂ
A bit sub is a short, threaded piece of pipe used to adapt parts of the drilling string that cannot otherwise be screwed together because of differences in thread size or design.
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| Denotation | Top junction block | Lower junction block | Type |
| Kelly joint | Kelly | Drill pipe joint | A or B |
| Kelly joint | Drill pipe joint | Drill pipe joint | A or B |
| Drill pipe joint | Kelly | Drill collar | A or B |
| Crossover joint | Drill collar | Drill collar | A or B |
| Bit joint | Drill collar | Bit | A or B |
| Swivel joint | Swivel lower joint | Kelly | Type C |
| Fish joint | Kelly | Drill pipe joint | Type C |
| Drill pipe joint | Fishing tool | Type C |
Material |
4145H |
| Model A | 2 3/8''IF(box or pin)-2 7/8''IF(box or pin) |
| Model B | 2 3/8''IF(box or pin)-3 1/2''IF(box or pin) |
| Model C | 2 3/8''IF(box or pin)-4 1/2''IF(box or pin) |
| Model D | 2 3/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model E | 2 7/8''reg(box or pin)-3 1/2''reg(box or pin) |
| Model F | 2 7/8''reg(box or pin)-4 1/2''reg(box or pin) |
| Model G | 3 1/2''IF(box or pin)-4 1/2''reg(box or pin) |
| Model H | 4 1/2''reg(box or pin)-6 5/8''reg(box or pin) |
| Model I | 6 5/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model J | 4''FH(box or pin)-5 1/2'' FH(box or pin) |
2.Bit sub/drill bit adapters's picture
4.Application
Bit sub/drill bit adapters/tricone bit jointÂ
Cross-over sub acts for conversion and connection of drill stem component in petroleum,natural gas and geology drilling work. It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations.
Delivery Time: Based on order quantity, normally it takes 30 days for production.Only 2 or 3 days if we
have stock on your request size.
Quality Control: We have our professional QC and all the products will be strict inspection and testing for every order before shipping out.Â
After Services: Technical Support will be available in any time. We could provide the professional suggestion for you.
EX: 1.Select the right most suitable products.
     2. According to the rock types, choosing the face type, button tooth type.
     3. According to the different purpose,. choosing the different body typeÂ
6.Contact us
All sizes and type can be customized.
If you need,welcome to contact me at any time
Hot rolled material is annealing in cold rolled annealing furnace and after pickling in acid.All mill rolls are grinded on precision grinding machine with proper chamfering after first shift operation.All sheets are pickled in different tanks and sheets are dried on brush roll machine before dispatch.These sheets are again annealing then sent to straighten machine for straightening and pickling in acid and send for packing according to size and quality.Inspection is done at various stages. By experience staff keeping proper control overall internal process via rolling, annealing, pickling, treatment of waste etc.
Hot rolled steel coils widely used in petroleum, chemical, power plants, boilers and other industries for the production reactors, heat exchangers, separators, tank, gas cans, gas cans, nuclear reactor pressure vessel, boiler drum, liquefied petroleum gas cylinders, Hydropower high-pressure pipes, turbines and other equipment and components volute.
Hot Rolled Steel Sheet Coil,Hot Rolled Steel Coil,Hot Rolled Sheet,Hot Rolled Steel
Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.cnshansteel.com