锥形取心钻头 tapered core bit
阶梯形钻头 step type bit
打捞金刚石取心钻头的公锥 core-bit tap
金刚石锥形钻头 corncob bit
棱锥形钻头 sprayed Drill; sprayed boring tool
锥形、锥、锥体、拉线鼓轮、托脚 Cone
锥形钻头 point bit; taper bit
锥形钻头 tapered bur
阶梯钻头 stepped bit; step bit; ladder drilling bit; step drill; multi diameter drill; subland drill
齿状取心钻头 borway bit
带岩心爪的取心钻头 trigger bit
堵塞的取心钻头 plugged bit
反循环取心钻头 reverse circulation core bit; reverse circulation sampling bit
刮刀取心钻头的刀翼 core bit wing
金刚石取心钻头 DCB; diamond core bit
金刚石取心钻头冠部 bit crown
金刚石取心钻头切削环 Curf
可收缩取出的取心钻头 retractable core bit
两层镶嵌刃取心钻头 double taper bit