Drill Tool Lifting Sub

The drill tool lifting sub is the special tools for lifting
of the drill tools in petroleum, natural gas industry and
geologic exploration. The drill tool lifting sub is divided
into a or b type structure. The a type has 18 degree
shoulder, the b type has 90degree shoulder. The lifting
sub can be selected according to elevator’s structure.
The integral lifting subs are made of high strength alloy
steel.All connections are complied with API standard.