About this item This spiral groove center drill is suitable for bench drills, milling machines, and machining centers.The 2mm center drill is made of high-speed steel with high hardness and hardness. This spiral groove center drill is incisive, wear resistant, heat resistant, and has a long service life.The use of enlarged chip flute design is conducive to high-speed operation and accelerate chip removal. Suitable for copper, stainless steel, cast iron, aluminum alloy, steel, steel plate, not suitable for ceramic tile, concrete, wall, stone, granite. There are 10pcs of this center drill bit, which can meet your replacement needs, convenient and practical. If you have any questions about the product or are not satisfied with the product, please feel to contact us and we will provide you with the best solution.