There are mainly two cutting-edge punching methods, one is straight hole drilling, and the other is cattle nostril playing. These punching methods require pencils, punching machines, thin iron wires and water pipes. When punching holes with a punching machine, pay attention to keep up with the water source, and punch holes at both ends at the same time. If you punch holes directly from one end, it is easy to crack or smash Hetian jade seed material.