This 4-inch diamond segment grinding wheel disc grinder cup is an ideal choice for cutting concrete and stone. With its durable HHS material and golden color, it is designed to withstand heavy use and last for a long time. The package includes 1 X 4-inch segment grinding wheel, which is perfect for use in sanders and grinders. This tool is great for anyone in the metalworking, CNC, manufacturing or industrial industries, as it is an excellent choice for grinding and shaping metal. Its brand, Artec Tool, ensures that you are getting a high-quality product that is made to last. The wheel is a cup grinding wheel and falls under the abrasive wheel and abrasive categories. This product is a must-have for anyone who needs a reliable grinding wheel that can handle tough materials.