7-7/8" x 29-1/2" Premium Zirconia Belts (Best for: Ferrous Metals)Premium Zirconia is best used on Stainless Steel and hard metals. Can be used on a variety of metals when needing to remove a lot of material. Y weight polyester backing Wet & Dry applications Choosing a Grit Coarse Grits (24 80): For heavy material removal, weld grinding, or shaping. Medium Grits (100 180): For blending, deburring, and intermediate smoothing. Fine Grits (240 400): For finishing or preparing for polishing. Super Fine (800 1200): For

·         Medium (Maroon) is equivalent to 120-150 grit

·         X-Weight for versatile

·         Y-weight poly/cotton blend backing

·         Fine (Dark Blue) is equivalent to 180-220 grit

and copper

· Best for wood sanding

·         J-Weight if you need flexibility for finishing

o   Light surface cleaning

·         Super Fine (800-1200): For mirror polishing or fine detailing

·         Y-weight polyester backing

·         Best for non-ferrous metals like aluminum

·         Best for final finishing and polishing on a variety of different materials