anchor bits

Product grade. General type, reinforced type and super-strong

Application: mainly for drilling support holes in anchor net of coal mines, to guarantee a fast and high efficient laneway excavation.

Feature: with a long bit life,drilling efficiency dramatically improved when drill medium hard rock(sandstone),knife wing has a high grinding resistane and anti-impact strength and need not repeatedly re-sharpening. Drilling hole diameter is not shrunk,ratio of hole forming is high, thus, waste of anchor rod and relevant materials reduce considerably,workers' laboring intensity decrease because of construction efficiency improved. It can be used in a large range of rock type.