NQ outer tube is the main part of NQ outer tube assembly. One end connects with NQ adapter coupling and another end connects with NQ reaming shell.The NQ outer tube is used together NQ core barrel. When drilling, the NQ outer tube directly touch to the hole wall,and transmits the torque to the hole bottom bit .

NQ outer tube is made of high-quality alloy steel with good strength, toughness and wear life.

NQ OUTER TUBE OVERVIEW

STANDARD OUTER TUBE FEATURES

●For use in all drilling conditions

●Available with chrome plated outer surface as an option

STANDARD FULL HOLE OUTER TUBE FEATURES

●Oversized pads for improved core barrel stabilization

●For use in competent ground conditions

●Available with chrome plated outer surface as an option

NQ OUTER TUBE SPECIFICATION

NQ AND RELATED OUTER TUBE SIZE OFFERINGS

BQ Outer-tube 1.5 M

BQ Outer-tube 3.0 M

NQ Outer-tube 1.5 M

NQ Outer-tube 3.0 M

HQ Outer-tube 1.5 M

HQ Outer-tube 3.0 M

PQ Outer-tube 1.5 M

PQ Outer-tube 3.0 M

BQ Outer-tube 1.5 M

BQ Outer-tube 3.0 M

NQ Outer-tube 1.5 M

NQ Outer-tube 3.0 M

HQ Outer-tube 1.5 M

HQ Outer-tube 3.0 M

REFERENCE PART#

C24357 C61517 C24346 C53193 C24910 C24898 C25259 C25243 C3543802 C3543801 C5000855 C3545386 C3545388 C3545387 C3545389 C3545390 C3545391 C3545392 C3545393

C3760004831 C3760004832 C3760006126 C3760006127 C3760004837 C3760004839 C3760016219 C3760016220 C3760006046 C3760006047 C3760006062 C3760006063

REFERENCE PHOTOS