the product material after heat treatment, long service life  

the use of special hard alloy, strong wear resistance  

Widely used in quarry, well foundation pile, open-pit mining and other projects  

Wide range of use  

Practice has proved that the drill bit is suitable for drilling hard strata such as carbonate rock, limestone, chalk rock, clay rock, siltstone, sandstone and so on. Compared with the general drill bit, especially drilling rock strata of grade 6 ~ 8, the drill bit has a remarkable effect.