Miller® Smith® SC-2 Series Size 4 Propane Gouging Tip General purpose tip best used for removing old welds or cracks, veering and groove cutting. This 2-piece tip has gouging capacity of 3/8" (10 mm) wide and 1/4" (6 mm) deep. Compatible with Heavy Duty SC200 Series Cutting Attachments, SC Series Cutting Torches and Gas Axe™.