Diamond Core Bit Concrete

Performance : 

•  K-mann Core Bits select the high-quality diamond and alloy powder, professional reinforce the high standard fixture concrete, high-density reinforced concrete, brick design formula of high- density reinforced concrete, fast drilling speed, long life. 
•  Rooftop tooth design, Good Concentricity, Guarantee small work swing and high precision drill. 
•  Using the the German CNC laser welding equipment and technology to produce a world-class level products, head welding firm, not easy to drop tooth, fast drilling speed