The roller cone bit is a widely used drilling bit. When the roller cone bit is working, the cutting teeth alternately contact the bottom of the well, the rock-breaking torque is small, the contact area between the cutting teeth and the bottom of the well is small, the specific pressure is high, and it is easy to penetrate into the formation; the total length of the working blade is large, so the wear is relatively reduced. Roller cone bits can adapt to a variety of formations from soft to hard.

Optimized design of the number of rows of teeth, the number of teeth, the height of the exposed teeth and the unique shape of the alloy teeth give full play to the cutting ability and cutting speed of the drill; 3. The circlip is used to lock the cone, which can withstand high drilling pressure;

The principle of the core drilling rig is roughly the same, and the main components are the drill rig, drill pipe, drill bit, etc. Power is provided by the drilling rig to drive the drill pipe and the drill bit to drill in to obtain deep core samples. According to different depths and formations, corresponding to different types of drilling rigs, yk-100 is the commonly used model.