The cutter is wear resistance and smooth removal of scrap during operation. If your reusing what your cutting out use a spot weld cutter drill bit. Otherwise I use a weld grinding wheel on a die grinder International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Spot Weld Drill 34-Piece Spot Weld Cutter Set – Double-Sided 3/8 Car Restoration Tool Drillpro 9pcs Spot Weld Cutter Punch Remover Panel Separator For Power Drill Welding Auto Body Work Tool Set Panel Separator Weld Remover PERFECT SIZE - 3/8 Diameter Cutting Blade is Ideal for Removing Spot Welds. Find the best Spot Weld Cutter, Sheet Metal Hole Cutter, and Auto Body Work Tool at Haiti. Perfect for power drills and welding projects The cutting edge is sharper and the piercing ability is better. FAST - Quickly Separates Spot-Welded Panels Without Distortion.