This carbide bur bit from HELONGCO is perfect for aluminum cutting and has a cutting diameter of 3/4 inches. The ball-shaped head with a coarse cutting edge style is great for achieving precision cuts. The burr has a shank diameter of 1/4 inches and is made from high-quality carbide. With a quantity of 147, this burr is ideal for metalworking professionals who require a reliable and durable cutting tool. It is manufactured in the United States and is suitable for use in CNC, metalworking, and manufacturing applications. This versatile burr can be used in various industries, including abrasives, burrs, metalworking supplies, and business and industrial sectors.