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Kellys

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Unit price:	Negotiable
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TianHe Oil Group HuiFeng petroleum equipments Co.,Ltd
Contact: dean(Mr.)
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Address:43.diming street

Details

Kellys

Kellys is driving section of wohole drill stem. Kelly is available with square kelly and hexagonal kelly. TIANHE brand kelly are manufactured strictly from API Spec7-1 and SY/T6509-2000 standard.

Technical specification and parameters

Size (in)	Upper box connection				Lower pin connection				I.D.(mm)		Driving section (mm)
	Connection (LH)		O.D.(mm)		Connection (LH)				Square	Hexagonal	Cross flat	For square kelly	Cross corner for hexa kelly
	Std	Optional	Std	Optional	Square	O.D. (mm)	Hexagonal	O.D. (mm)	Square	Hexagonal	Cross flat	For square kelly	Cross corner for hexa kelly
2 1/2	6 5/8REG	4 1/2REG	196.8	146.0	NC26	85.7			31.8		63.5	83.3
3	6 5/8REG	4 1/2REG	196.8	146.0	NC31	104.8	NC26	85.7	44.4	31.8	76.2	100.0	85.7
3 1/2	6 5/8REG	4 1/2REG	196.8	146.0	NC38	120.6	NC31	104.8	57.2	44.4	88.9	115.1	100.8
4 1/4	6 5/8REG	4 1/2REG	196.8	146.0	NC46	158.8	NC38	120.6	71.4	57.2	108.0	141.3	122.2
4 1/4	6 5/8REG	4 1/2REG	196.8	146.0	NC50	161.9	NC38	120.6	71.4	57.2	108.0	141.3	122.2
5 1/4	6 5/8REG		196.8		5 1/2FH	177.8	NC46	158.8	82.6	76.2	133.3	175.4	151.6
5 1/4	6 5/8REG		196.8		NC56	177.8	NC50	161.9	82.6	82.6	133.3	175.4	151.6
6	6 5/8REG		196.8				5 1/2FH	177.8		88.9	152.4		173
	6 5/8REG		196.8				NC56	177.8		88.9	152.4		173

All technical specifications and parameters only provides for reference.

Kellys

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