This weld cutter is double sided rotary cutter blade separates spot welded panels more effectively than a panel cutter. Allow you to avoid the risk of needing to pause in the middle of a job due to dulling blades. Features: Double sided 3/8" heavy duty high speed rotary metal cutting blade made from high quality heat resistant steel. 3/8" diameter cutting blade is suitable for removing spot welds. Spot weld cutter drill bit for easily separate spot welded panels without distorting the sheet metal. The 3/8" cutting spot welds remover fits most 1/4" drills, arbor with flats to eliminate spinning in chuck. Suitable for thin stainless steel sheets, iron sheets, aluminum sheets, F.R.P or other thin metal sheets. Specifications: Material: Steel Item Size: 75 * 9.5mm / 2.95 * 0.37in Package Weight: 85g / 3ounces Package Size: 105 * 45 * 23mm / 4.13 * 1.77 * 0.91in Packing List: 1 * 3/8 Spot Weld Drill 2 * Center Bits 10 * Hole Openers