• Model NO.：all type
• Color：Black or Blue
• Thread Sizes：as Buyer′s Requirements
• Length：as Buyer′s Requirements
• Advantage：Long Service Life
• Packing：Wooden Box
• Bent Angle：1-2 Degree
• Market：Europe,America,Africa,Middle East
• Transport Package：Wooden Case
• Specification：all type
• Trademark：JW
• Origin：Cangzhou, Hebei, China
• HS Code：8431431000
• Production Capacity：50000PCS,Year

Fish jointKellyDrill pipe jointType CDrill pipe jointFishing toolType C 

Material

4145HModel A2 3/8''IF(box or pin)-2 7/8''IF(box or pin)Model B2 3/8''IF(box or pin)-3 1/2''IF(box or pin)Model C2 3/8''IF(box or pin)-4 1/2''IF(box or pin)Model D2 3/8''reg(box or pin)-3 1/2''IF(box or pin)Model E2 7/8''reg(box or pin)-3 1/2''reg(box or pin)Model F2 7/8''reg(box or pin)-4 1/2''reg(box or pin)Model G3 1/2''IF(box or pin)-4 1/2''reg(box or pin)Model H4 1/2''reg(box or pin)-6 5/8''reg(box or pin)Model I6 5/8''reg(box or pin)-3 1/2''IF(box or pin)Model J4''FH(box or pin)-5 1/2'' FH(box or pin)
2.Bit sub/drill collar sub's picture




 

 

4.Application
Bit sub/crossover sub /drill collar sub
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.

5.Our service
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. 
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 type 

6.Contact us
All sizes and type can be customized.
If you need,welcome to contact me at any time.