PEERCHEER offers NTW thin wall wireline drill rod for use with NTW core barrel and get biggest core size per comparable system size. NTW drill rod is ideal for competent ground formations combined with high rotation speed, low feed force drills for improved rate of production. NTW drill rod is available for application in standard DCDMA N size hole.
NTW drill rod features:
-High quality alloy steel tubes
-Consistent concentricity, straightness and heat treatment
-Tapered and course threads provides easy make and break
-NTW thread provides sufficient strength
-NTW drill rod has case hardened thread.
-NTW drill rod pin thread crest is hardened to nominal HRC 55 to eliminate damaging adhesion wear
-Eliminates the transfer of wear material back and forth which is what happens
between threads of equal hardness, leading to large scale galling and joint seizing.