Weiler's products are also available in small intermediate pack quantities for easy refill. This minimizes the handling from your storage location all the way to the end-user. Our products come the way you need them, ready to load into vending machines. Our vending program drives cost out of the supply chain for our business partners by simplifying the vending process. A Thicker Disc with Larger Flaps Which Conforms to Curved and Irregular Surfaces. Produces a Consistent Finish, 30-40 Percent Longer Life Than Standard Flap Discs. Increased conformability and maximum life.Made in excellent material that makes it more durable and efficient. Suitable for Right Angle Grinder. Made in Stainless Steel material application. Can be use with spanner nuts. It has high flap density, and its arbor hole size is 7/8" with 40 Grit and 12000 maximum RPM. Phenolic backing palte material. With the diameter of 4-1/2 inches, has a Zirconia Alumina. Perfectly made in United States of America. Best for Grinding Application.