The shoulder type drill tail has a hexagonal cross-section, with inner circle diameters of 22mm and 25mm, and lengths of 108mm and 159mm. It is manufactured using forging technology and is used for lightweight rock drills.

The drill ear type drill tail is used for medium-sized guide rail rock drills with internal rotation, and there are two types of drill rod diameters: 25mm and 32mm.

Spline type drill tail is commonly used in heavy-duty guide rail type external rotary rock drills with high torque, and the diameter of the drill rod is more than 38mm. Commonly used mechanical processing methods for manufacturing.

The brazing tailings used in Chinese mines are mainly made of two types of steel, 35SiMnMoV or 24SiMnNi2CrMo, which have significantly improved service life.

The end of the drill bit has a significant impact on the speed of rock drilling, the lifespan of the drill bit and the rock drill machine. Therefore, the length of the drill tail should be appropriate, the end face should be flat and smooth, the cross-section should be perpendicular to the axis, and it should match the drill sleeve of the rock drill (the gap should not exceed 0.5mm). The hardness of the brazing tail should be appropriate. If it is too soft, the lifespan of the brazing tail is short. If it is too hard, the piston is prone to injury. Generally, the hardness of the brazing tail should be slightly lower than that of the piston, and the quenching hardness HRC=38-45 is suitable.

Specialized CNC machining equipment and process flow should be used to ensure the quality of tail details, internal water holes, and side water holes. The brazing tail undergoes uniform heat treatment and is scientifically straightened using precision instruments to ensure its flatness and resistance to noise.