PEERCHEER offers thin wall HTW core barrel for use with HTW rods. HTW Triple Tube Core Barrel is ideal for competent ground formations combined with high rotation speed, low feed force drills for improved rate of production. HTW core barrel is available for application in standard DCDMA H size hole. But HTW Triple Tube Core Barrel offers lightweight options for biggest core size per comparable system size.It consists of the HTW head assembly , HTW inner tube components and HTW outer tube components.