8 1/2" IADC 637 Metal Bearing Tricone Rotary Tricone Drill Bit for Oil&Gas Well

• Certification：ISO 9001:2000
• Standard：API
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Alloy Steel
• Bit Size：8 1,2"(215.9mm)

=== Base Info ===

• Model NO.：iadc637
• Thread：4 1,2"Reg
• Bearing Type：Journal Bearing
• Sealed Material：Rubber,Metal
• Formatiom：Soft to Hard Rock
• Color：Blue,Golden
• Warranty：180hours
• Advantage：High Performance
• Service：The Best Service
• Market：Europe,America,Africa,Middle East
• Transport Package：Wooden Case
• Specification：IADC637
• Trademark：JW
• Origin：Cangzhou, Hebei, China
• HS Code：82071990
• Production Capacity：5000PCS,Year

=== Description ===
Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect.
2.Pictures's tricone rotary drill bit/tricone bit 




3.Packing&shipping 
Packing:wooden case(standard export packing) 
Transportation type:by sea,by air,by train ect as your requirement 


4.Our service 
tricone bit/tricone rotary drill bit 
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 

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