is one kind of revolving cutting drilling equipment and power by electricity,can be used for soft rock drilling or earth dril...

It is one kind of revolving cutting drilling equipment and power by electricity. It can be used for soft rock drilling or earth drilling. It has two types: explosion-proof type and non explosion-proof type.Explosion-proof type: Used for coal mining and laneway working. By matching with different drill rods, it can be used to excavate the laneway, to prospect for water of coal seam, for gas as well as to drill the gas release hole or fire extinguishing hole and so on.