There are two kinds of gun drills, namely, the center-cut gun drill used for drillingblind holes and the trepanning drill.
深孔钻有两种类型，即用于钻盲孔的中心切削深孔钻和套孔钻。
2
With the advantage of compact structure, stable motion and no blind rock drilling area, double triangle boom is used in rocking drilling robot.
双三角钻臂具有结构紧凑、运行平稳、凿岩无盲区等优点，被凿岩机器人所采用。
3
To manufacture stainless steel, carbon steel, aluminum and other types of blind rivets, self drilling screws, nuts, plans to sample processing non-standard hardware.