Engineered for precision and performance, these depressed center grinding wheels are an essential tool for any metalworking professional. The Pipeline series features a unique blend of Aluminum Oxide and Zirconia Aluminum Oxide grains, designed to deliver fast cutting capabilities while ensuring a longer lifespan. With a size of 4-1/2 x 1/8 x 5/8-11 and a maximum RPM of 13,300, these wheels excel in grinding and cutting ferrous metals and stainless steels, making them ideal for light or root pass applications. Crafted with premium materials and advanced technologies, these wheels provide consistent cutting action, enhancing efficiency and ease of use in your welding and gas projects.