Long service life of drill bit  

Alloy steel material, its long service life, and higher than similar products.  

(2) Fast drilling efficiency  

the solid drill teeth allow the bit to remain sharp at all times, thus greatly increasing the speed of entry.  

(3) Stable drilling speed  

A drill breaks rock by scraping and shearing.  

Good diameter retaining effect  

the bit tolerance is strong and the diameter retaining performance is good, enabling the use of the cutting teeth  

A 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.