This grinding bits set is built with zirconium corundum, delivering wear resistance for metal grinding tasks and long tool life. - Durable material and performance: zirconium corundum grinding bits designed to withstand wear when working on metal surfaces. - Versatile set with varied sizes and shapes: grinding heads come in different sizes and shapes, and the kit includes sanding bits to fit multiple contours and spots. - Comprehensive abrasive options: includes stone grinding wheel and abrasive mounted stone grinding wheel for different finishes and levels of aggressiveness. - Rotary tool and drill compatibility: designed for grinding with rotary tools and drills, including bits for drill and stone grinding work, suitable for small-area grinding and precise work. - Efficient and precise: varied sizes and shapes enable accurate grinding in tight or hard-to-reach areas. Use scenarios - Deburring, edge smoothing, and detailing on small metal parts in fabrication or repair projects. - Finishing welds and shaping curves on metal components, brackets, or automotive parts. - Detailing and refining small metal pieces in jewelry making, hobby projects, or precision maintenance.