Product Introduction 7655 rock drilling is a high efficiency rock drilling machine. It’s widely used in mining and roadway drivage of drilling operation. Also it’s a important tool for railway, water conservancy,and construction. It can be used with FY200B oiler and type FT160A (FT160B,FT160C)air leg.It can used for drilling the medium hard rock for wet drilling, drilling horizontal and inclined hole.