1. The use of imported carbide inserts, which maintain good chipping and wear resistance even under severe operating conditions, combined with a special tooth geometry, ensures smoother and easier drilling and significantly increases service life;
2. Equipped with a highly elastic compression spring that ejects the material core at the moment of drilling;
3. The body is made of alloy steel and undergoes quenching and tempering in imported vacuum heat treatment equipment, giving it high toughness and extending tool life;
4. Grinding the outer diameter of the cutting edge on a five-axis CNC machine improves the dimensional accuracy of the cutting edge and guarantees high-precision holes after drilling.