This set of 18 Werkmaster tooling tear drops is a must-have for anyone in the metalworking industry. The 30/40 grit abrasive wheels are perfect for grinding and polishing a variety of surfaces, making them highly versatile and practical for a range of applications. Whether you're working with wood, metal, or other materials, these cup grinding wheels are sure to get the job done efficiently and effectively. Plus, with a high-quality construction and durable design, you can trust these abrasive wheels to last for years to come.