Twist drill high hardness steel drill with cobalt twist

Persist in selecting high-performance M2 high-speed steel from large factories, ensuring the quality of genuine materials; Better performance than M35 high cobalt diamonds in the same price range on the market
CNC precision grinding of dual rear angles effectively improves chip removal performance, sharper cutting, and faster drilling speed
The overall CNC precision grinding process ensures the accuracy, toughness, and wear resistance of the drill bit, making it more suitable for high-strength continuous drilling