1\size:190 2\Type:blade model with steel body 3\suitable for drilling in the middle hard rock and soft rock 4\drilling fast

Size:φ190pdc bits

Blade:Five blade

type:blade model with steel body

Application: This group of products is used to penetration the degassing hole, drain hole, and grouting hole of coal mine. 

Characteristics: Compared with the others, this one has a higher abradability and wide range of application, suitable for drilling in the middle hard rock and soft rock. Drilling speed is very fast. 

Applicable rock formation: f≤6.