10pcs 3/8" Double Sided Rotary Spot Weld Cutter Remover Drill Bits set Cut Welds Feature HSS Material: Made of high-speed steel material, high hardness and wear resistance. Center pin on the bit is spring-loaded. Double-sided Blades: Sharp double-sided blades for high efficiency. Suitable for thin stainless-steel sheets, iron sheets, aluminum sheets, F.R.P, or other thin metal sheets. Spot weld cutter drill bit for easily separate spot-welded panels without distorting the sheet metal. Separate Spot-welded sheet metal, panel, etc. and cut small access holes. This weld cutter is a double-sided rotary cutter blade that separates spot-welded panels more effectively than a panel cutter. Double-sided 3/8-inch rotary blade and Hex Shank fit most drills. Easy to replace the blades when it begins to dull. Specification Type:Double Sided Rotary Spot Weld Cutter Material:HSS Diameter of the Saw Tooth Part:3/8"(9.5mm) Use:Iron, cast iron, alloy steel, carbon steel, die steel Package Included 1 x Electric Welding Drill Kit