The MR-4 ID is a drilling unit able to operate on steep surfaces. Its tubular structure with a wide heavy duty skid base, allows the unit to adjust itself to the uneven ground while moving. The MR-4 ID can be equipped with an hydraulic rotary head (to operate down-the hole hammers up to 6”), or with a roto-percussion hydraulic drifter. The mast feed system is powered by an internal hydraulic cylinder.
