The maximum speed limit can reach 3000 rpm. The maximum rotation speed of ordinary lathe can be limited to 3000 rpm after increasing the pitch, because the cutter will be subjected to greater pressure when increasing the pitch, which will cause greater damage to the cutter and tool rest, so it is necessary to reduce the cutting speed to prevent noise, vibration and excessive wear. In addition, ordinary lathes can be used to cut various metals, such as aluminum, steel, stainless steel and copper. , and can process all kinds of precision parts such as torque, thread, plane, etc. And can also perform operations such as tapping, tooth modification or shaping.