<br/>6 in - PDC BIT/TRICONE BIT/DRILL BITS FOR METAL

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HOME >Leading Products >Kelly

Kelly

6 in

Design Specifications

Length (ft)	40
Standard or optional	Standard
Top Connection	Connection : 6 5/8REG
	OD(in) : 7 3/4

Operating Parameters

Bottom Connection	Connection :5 1/2FH
	OD(in) : 7
Across Corners DC (mm)	173.0
ID (in)	3 1/2
Weight (kg)	1345

●API Hexagonal Kelly,Product Schematic Diagram.

六方钻杆示意图.jpg

Kelly is the driven part of the whole drill string.

Kelly is divided into Square Kelly and Hexagonal Kelly. WOLFNI Kelly all conform to API Spec7-1.

The length of Kelly extends from 11meters, 12meters,16meters,and to the longest 27 meters.(connected with tool joint of high torsion resistance)

API Hexagonal Kelly
Size (in)	Length (ft)	Standard or optional	Top Connection		Bottom Connection		Across Corners	ID (in)	Weight (kg)
Size (in)	Length (ft)	Standard or optional	Connection	OD (in)	Connection	OD (in)	DC mm	ID (in)	Weight (kg)
3"	40	Standard	6 5/8REG	7 3/4	NC26	3 3/8	85.7	1 1/4	462
3"	40	Optional	4 1/2REG	5 3/4	NC26	3 3/8	85.7	1 1/4	431
3 1/2"	40	Standard	6 5/8REG	7 3/4	NC31	4 1/8	100.8	1 3/4	561
3 1/2"	40	Optional	4 1/2REG	5 3/4	NC31	4 1/8	100.8	1 3/4	531
4 1/4"	40	Standard	6 5/8REG	7 3/4	NC38	4 3/4	122.2	2 1/4	765
4 1/4"	40	Optional	4 1/2REG	5 3/4	NC38	4 3/4	122.2	2 1/4	735
5 1/4"	40	Standard	6 5/8REG	7 3/4	NC46	6 1/4	151.6	3	1069
5 1/4"	40	Standard	6 5/8REG	7 3/4	NC50	6 3/8	151.6	3 1/4	996
6"	40	Standard	6 5/8REG	7 3/4	5 1/2FH	7	173.0	3 1/2	1345
6"	40	Standard	6 5/8REG	7 3/4	NC56	7	173.0	3 1/2	1343

With advanced sales network, our products

export to Russia, Germany, Czech Republic,

Iran, UAE, Kuwait, India, Kazakhstan,

Indonesia, Algeria, Argentina, Brazil, etc.

六方钻杆图纸.jpg

1. Product: Hexagonal drill kelly

2. Supply range: 3"- 6"

3. Packing: anti-rust package, steel shelf with plastic bags

4. Standard: API Spec 7-1 or SY/T6509 Standard.

5. Delivery time: within 30 days

6. Test: Ultrasonic test, tensile test, impact test, hardness test, etc.

7. Mechanical Propriety :conforming to API 7-1 and 5D

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