Profax® AEC-4500-1 Arc Gouging Torch With 7 ft Swivel Cable Assembly, Heavy-Duty, Amperage: 200 amp for 3/16 Inch Carbon, 300 amp for 1/4 Inch Carbon, 350 amp for 5/16 Inch Carbon, 450 amp for 3/8 Inch Carbon, 800 amp for 1/2 Inch Carbon, 1000 amp for 5/8 Inch Carbon