The MR-3 PN is a drilling unit that allows operation on steep slope planes. Its wide-base tubular structure features a skid that allows it to adapt to the roughness of the ground during its movement. The MR-2 PN can be equipped with a pneumatic rotary head (for using 2” / 3” and 4” down-the hole hammer), or with a roto-percussion pneumatic drifter. The mast feed system is powered by a pneumatic piston motor.
