A cutting apparatus suitable for creating tunnels or subterranean roadways and the like comprising: a main frame having regions (300, 301, 302) facing in a first direction, a second direction opposite to the first direction and a third direction perpendicular to the first and second direction and to a lengthwise direction; a first and a second arm each pivotally mounted via a respective arm pivot axis aligned in a direction extending transverse including perpendicular to the first and second direction to enable the first and second arms to pivot independently of one another in the first and second direction, at least one first and second arm actuator (122, 130) to actuate independently pivoting movement of the first and second arms relative to the main frame, a rotatable cutting head mounted at each of the first and second arms, and wherein each of the rotatable cutting heads mounted to the first and second arms is rotatable about a respective head axis orientated to extend substantially transverse to each respective arm pivot axis, characterized in that each cutting head comprises a generally annular cutting edge or layered cutting edges to provide an undercutting mode of operation, wherein the head axis is offset by a predetermined offset amount from a plane defined by the arm pivot axis and a line parallel to the head axis, wherein the head axis is offset towards a forward direction with the arm being positioned in the second direction, the cutting apparatus comprises a plurality of roller cutters independently rotatably mounted at each rotatable cutting head, wherein the plurality of roller cutters are generally annular roller cutters each having a generally annular cutting edge or layered cutting edges to provide an undercutting mode of operation. a main frame having regions (300, 301, 302) facing in a first direction, a second direction opposite to the first direction and a third direction perpendicular to the first and second direction and to a lengthwise direction; a first and a second arm each pivotally mounted via a respective arm pivot axis aligned in a direction extending transverse including perpendicular to the first and second direction to enable the first and second arms to pivot independently of one another in the first and second direction, at least one first and second arm actuator (122, 130) to actuate independently pivoting movement of the first and second arms relative to the main frame, a rotatable cutting head mounted at each of the first and second arms, and wherein each of the rotatable cutting heads mounted to the first and second arms is rotatable about a respective head axis orientated to extend substantially transverse to each respective arm pivot axis, characterized in that each cutting head comprises a generally annular cutting edge or layered cutting edges to provide an undercutting mode of operation, wherein the head axis is offset by a predetermined offset amount from a plane defined by the arm pivot axis and a line parallel to the head axis, wherein the head axis is offset towards a forward direction with the arm being positioned in the second direction, the cutting apparatus comprises a plurality of roller cutters independently rotatably mounted at each rotatable cutting head, wherein the plurality of roller cutters are generally annular roller cutters each having a generally annular cutting edge or layered cutting edges to provide an undercutting mode of operation.