Specifications

mechanical internal cutter:
it is a special tool to cut pipe in pipe string, with exception of coupling,

 mechanical internal cutter

 

The cutters is divided into mechanical cutters and hydraulic cutters. Mechanical internal cutter is a special tool to cut pipe in pipe string, with exception of coupling, it can cut at any position of fish(fallen objects).During cutting operation, the releasing spear can be connected above internal cutter, after fish cutting, pipe string above cutting position can be lifted out at one time.

 

                                          

Type	OD of casing& tubing inch	OD of cutter mm	thickness mm	Thread connection API
ND-73	2-7/8	57	5.5	1.9TBG
ND-89	3-1/2	67	6.5	1.9TBG
ND-102	4	85	5.7,6.7	2-3/8TBG
ND-114	4-1/2	89	7.4~10.9	2-3/8TBG
ND-140	5-1/2	120	7,7.7,9.2	NC31
ND-168	6-5/8	149	7.3     8.9	NC38