API Square Kelly Downhole Tools for Oil Well Drilling
2. Size: 2-1/2"-6"
3. Processing Type: Forging
4. Use: Well Drilling
5. Kelly type: square or hexagonal
6. Box connection type: 6 5/8 REG
7. Material:AISI 4142H-4145H forged or rolled alloy steel
8. Packaging Detail: Iron shelves or as your requirement
9. Delivery Detail: 30 days
Usage: Kelly is the drive part of whole drill string, it transmit the torsional energy from the rotary table to the bit in the bottom of the hole.
1. Kelly is at the upper end of drilling string includes squre and hexagon ,both are available according to customers' requirements.
2.During the rotary drilling process, combined with Kelly bushing and rotary ,it can transports surface rotary torque to drilling pipe to make drilling bit rotate and support drilling string hang weight with excellent load capacity
3. It can also support drilling hang weight and reverse torque during turbine drilling or screw rod drilling.
4. Simple structure, excellent quality, a long service life.
Upper Box Connection
Lower Pin Connection
Cross Flat (mm)
For Square (mm)
Cross Corner for Hex (mm)
Generally, if KELLY are in stock, warehouse machine need 3 days delivery for paint and package, tell us: what colors u need. If every material is ready, 10 days finish the goods.
If material is not ready, 30 days to delivery. Because we still have other order to do at the same time.
And we will sign 45 days in agreement; delivery time is usually in advance
About Logo: KW, we can produce according to customer requirements.
About Quality: All the products with API, low price are not -API, cannot be exported.
About Warranty: Warranty period is 1 year after installation.
About Payment: 30% of the advance payments, delivery time, please pay 70%.
About Ttechnical Documents: I submit the following accompanying technical information in English,
A: Test Report in accordance with the appropriate API or national test standards outline
B. Commerial Invoice
C: Original copy of quality certificate
D: Packing List
E: The chemical element ,Mechanical properties.
We believe in Customer delight, achieved by the supply of Quality Products & Services and Continual Improvement in our Manufacturing Processes for timely delivery at competitive prices. We work in a professional, competitive, and cost-effective manner consistent with the Customer requirement.
Xi'an Kingwell Oilfield Machinery Co.,Ltd is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provide complete solutions.
With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, DST tools and Solid Control products.
KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation, our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices.
is a professional supplier for oilfield products according to the API standard. We exporting ALL KINDS OF OILFIELD MACHINERY AND TOOLS with super Quality and Competitive Price in CHINA.
Should you have any interest about our products, please feel free to contact me.
We will offer you the best price and excellent services.