Set of 5 rotary rasp bits for milling, filing and shaping steel. This essential set covers material removal, contouring and finishing tasks in metal projects. carbon steel construction Made from heattreated carbon steel for improved wear resistance and extended tool life. Designed to hold shape under demanding grinding and shaping tasks. 1/4 inch hex shank compatibility Features a 1/4 inch hex shank that fits most drills. Allows quick bit changes and smooth installation across a range of projects. Usage Ideal for grinding, shaping and creating precise holes in steel. Suitable for both hobbyists and professional tradespeople who require reliable, durable tools. Use scenarios Deburring and smoothing the edges of steel brackets and plates after cutting. Shaping contours on metal components to achieve a precise fit or finish. Enlarging or refining openings and holes in steel parts with controlled material removal.