下锚时，锚身上向底部钻动（以提供锚抓力）的尖端部分。
The pointed part(s) of an anchor that digs into the bottom when the anchor sets
经过几年对锚杆钻机的跟踪研究，发现锚杆钻机在围岩作业中常遇到软岩中有硬岩夹层的现象，造成施工过程经常更换钻具的问题。
After several years to jumbolter research, the hard rocks always present in the soft ones in the wall rock procedure using jumbolter, which results in changing the boring tool during the procedure.
取出之后，应将原来10公厘的小洞钻为12公厘，再将新的锚栓设在同样的位置。
If appropriate, old 10mm holes should be re-drilled to 12mm and the new bolt placed in the same position.
用于打钻墙壁锚栓孔的电钻。
许多卡钻事故是由于封隔器及其他锚瓦类井下工具的使用造成的，Y 211型封隔器的卡钻问题最为突出，且多发生在定向井中。
The sticking of the downhole string happened occasionally because great quantity of packers and other tools with slips are used. The sticking of Y211 packer is frequent in directional well.
此时司钻操作液压锚头，伸出液压缸拉紧大钳，扭矩表显示液压锚头绳的拉力。
The driller now operates the EZY-torque. The hydraulic cylinder slides out (up) causing the jack line to be pulled by the rig tong. The torque meter will indicate the torque line pull force.
此时司钻操作液压锚头，伸出液压缸拉紧大钳，扭矩表显示液压锚头绳的拉力。
The driller now operates the EZY-torque. The hydraulic cylinder slides out (up) causing the jack line to be pulled by the rig tong. The torque meter will indicate the torque line pull force.
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