Diamond Circle Wrench For Diamond Core Drilling Core Barrel Outer tube, inner tube
 

Drill pipe Circle wrench main application fields include geological exploration, geological exploration, hydrogeology, metallurgy, water wells, coal industry.
 

Circle wrench are tools dedicated to manual unscrewing of drilling tools in core drilling. Unscrew the shank drill rod free forceps of the drill pipe, and unscrew the sleeve free clamp of the casing and core tube.

Roschen provide three kinds of circle wrenches for customers all over the world: diamond, inner tube and casing tube of types.
 

Our diamond circle wrench is packed by export-standard plywood box.
 

1. Outer tube
The outer circle wrench is mainly used to manually screw and unscrew drill rods, outer and inner tubes and casing tubes.
 

It is quite appropriate to be used in mine drilling field, and it is capable of improving drilling efficiency. It causes no harm to pipes. Its holding force is big and no skidding (slipping) will happen when using it.

Its main components include steel chain and slips.
 

2. Inner Tube Circle Wrench
The inner tube circle wrench is specially used to manually screw and unscrew inner tubes of double-pipe assembly in the field of mine drilling. It is safe to use, and capable of saving labor, and causing no harm to pipes. It is light in weight and large in gripping force. No slipping will happen.

3. Casing Tube Circle Wrench
The casing tube circle wrench is a kind of tool to screw and unscrew casing tubes in the double-pipe assembly. It's mainly composed of steel chain and alloy steel slips.
 

It can help to enhance the drilling efficiency and it is easy to utilize.