Forney 1-1/4 x 3/4 In. Pointed Grinding Stone is crafted from durable, high-grade aluminum oxide, making it i for grinding, polishing, or deburring ferrous metals and other hard surfaces. Designed for use with high-speed drills, this grinding stone is especially useful in tight spaces where larger wheels cannot fit or where smaller abrasive wheels tend to wear out quickly. It features a mounted point type A12 with a size of 1-1/4" x 3/4", a shank diameter of 1/4", and a 60 grit for effective material removal. The grinding stone supports a maximum speed of 38,050 rpm, ensuring efficient performance for your metalworking tasks. Model Number: 60029