25 pack - 1/2" x 18" Polyester Backed Aluminum Oxide Belts (Best for: Wet Applications)Best for wet applications Can also be used for more aggressive sanding 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 mirror polishing or fine detailing. Choosing a Backing Weight J Weight if

· Can be used on a variety of metals when needing to remove a lot of material

which is much higher than the standard 50/50 blend on most other ceramics

·         Depending on the coarseness of the belt you choose

plastics & composites

· Premium Zirconia is best used on Stainless Steel and hard metals

Choosing a Surface Conditioning Belt

·         J-Weight if you need flexibility for finishing

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

·         Standard Ceramic material is best used on hard metals

·         Can be used on other materials when needing something more aggressive

· Topically infused Grinding aid to help reduce heat and last longer during aggressive applications

·         Best for non-ferrous metals like aluminum