Cutting apparatus suitable for creating tunnels or subterranean roadways and the like comprising: a main frame having generally upward , downward and side facing regions; a first and second support pivotally mounted relative to the main frame via respective first and second support axes aligned generally upright relative to the upward and downward facing regions such that each first and second support is configured to pivot laterally in a sideways direction relative to the side facing regions; at least one first and second support actuator to respectively actuate independently movement of each of the first and second supports relative to the main frame ; a first and second arm each pivotally mounted to the respective first and second support via a respective arm pivot axis aligned in a direction extending transverse including perpendicular to each support pivot axis to enable the first and second arms to pivot independently of one another and to pivot relative to each of the respective first and second supports in an upward and downward direction relative to the upward and downward facing regions; at least one first and second arm actuator to actuate independently pivoting movement of the first and second arms relatives to each of the respective first and second support ; a rotatable cutting head mounted at each of the first and second arms , each head rotatable about a 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; and wherein each of the first and second arms is configured to pivot in the upward and downward direction by up to 180°; and each of the first and second supports is configured to pivot in the lateral sideways direction by up to 90°. a main frame having generally upward , downward and side facing regions; a first and second support pivotally mounted relative to the main frame via respective first and second support axes aligned generally upright relative to the upward and downward facing regions such that each first and second support is configured to pivot laterally in a sideways direction relative to the side facing regions; at least one first and second support actuator to respectively actuate independently movement of each of the first and second supports relative to the main frame ; a first and second arm each pivotally mounted to the respective first and second support via a respective arm pivot axis aligned in a direction extending transverse including perpendicular to each support pivot axis to enable the first and second arms to pivot independently of one another and to pivot relative to each of the respective first and second supports in an upward and downward direction relative to the upward and downward facing regions; at least one first and second arm actuator to actuate independently pivoting movement of the first and second arms relatives to each of the respective first and second support ; a rotatable cutting head mounted at each of the first and second arms , each head rotatable about a 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; and wherein each of the first and second arms is configured to pivot in the upward and downward direction by up to 180°; and each of the first and second supports is configured to pivot in the lateral sideways direction by up to 90°. <EOS>