Made of high-hardness tungsten steel drill body, combined with high-temperature quenching treatment, significantly improving wear resistance and structural strength, extending service life.
Smooth and even cutting hole walls, no need to frequently retract the drill during operation, making it more labor-saving and efficient.
27th Floor, Tower 1, Shanghai Landmark Center, No. 88 North Sichuan Road, Hongkou District, Shanghai, China
contact@rankortools.com