1、Wear Resistance: Made of high speed steel, possess high hardness and wear resistance. The drill center pin is spring loaded 2、High Efficiency: Of sharpness double sided blade with high efficiency. Suitable for thin stainless steel plate, iron plate, aluminum plate, glass fiber reinforced plastic or other thin metal plates 3、Easily Separate: The spot welding cutting bit can easily separate the spot welding panel without distorting the metal plate. Separate spot welded metal plates, panels, etc., and cut out small inspection holes 4、Double Sided Rotary: This welding cutter is a double sided rotary cutter blade, which separates the spot welding panel more effectively than the panel cutter 5、Fit Most Drills: This double sided 3/8in rotating blade and hex shank is fit for most drills Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia