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.
Â
| 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
EXW are a Taiwanness professional Patch Cord manufacture with more than 30 years experience. For us, we make OEM & ODM cases for many big branded customers.
All of our products, including the package are comply with RoHS & REACH.
Quality is our proud, and UL, ETL, RoHS, REACH, CE, is valid and updated every year for our products.
Cat.6A UTP & SSTP 4PR Copper Patch Cord PVC/LSOH
Cat.6 UTP & SSTP 4PR Copper Patch Cord PVC/LSOH
Cat.5E UTP & SFTP 4PR Copper Patch Cord PVC/LSOH
Cat6A Networking Patch Cable, Cat6A U/FTP Patch Cord, Cat6A Patch Cord Solid 23AWG
Ningbo Excellence Communicated Connector Co., Ltd , http://www.patchcordmaker.com