Multiple layers of Zirconia cloth flaps constantly expose new sharp points to the work surface. These flaps are laminated by state-of-the-art automated equipment to a reinforced fiberglass backing that wears with the flaps and will not damage the workpiece. This enables the operator the use of the entire disc for a greater efficiency. Each disc is balance tested and will not vibrate, providing a smooth cutting, long lasting sanding tool.
![4 x 3/8-24 Z40-Grit Utility Flap Discs, Type 29/Angle Fiberglass (10/Pkg.) 4 x 3/8-24 Z40-Grit Utility Flap Discs, Type 29/Angle Fiberglass (10/Pkg.)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/195406/275315/AdvZircFlap__13730.1524575205.png?c=2)