Internal Hook

The internal hook is used for fishing all kinds of ropes and other fishes from the casing or tubing, such as wire lines, logging steel pieces, paraffin cutters, etc. (whether internal hook insert into the ropes or other fishes), then pick up the drilling tools and the hook tooth will carry the fishes to the ground.

Type	Max.OD mm(in)	Conn.	Laying down casing/tubing
NG73	73(2-7/8)	2-3/8UP TBG	3-1/2tubing
NG95	95(3-3/4)	NC26	4-1/2tubing
NG114	114(4-1/2)	NC31	5-1/2casing
NG150	150(5-29/32)	NC38	7casing
NG190	190(7-31/64)	NC38	9-5/8casing

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