Designed for efficiency and performance, the ALLSTEELâ„¢ Flap Discs from Walter Surface Technologies are an essential tool for professionals working with stainless steel and steel. Measuring 4-1/2 inches, these discs feature a unique zirconia alumina grain blend that self-sharpens under pressure, ensuring a consistent high removal rate while minimizing the need for frequent replacements. Ideal for blending sharp corners, heavy deburring, and fillet welds, these discs come with a trimmable backing that extends their lifespan, making them a cost-effective choice for any workshop. Packaged in sets of ten, these discs are both practical and durable, manufactured in Germany to meet high-quality standards.