25 pack - 1/2" x 24" 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

· Y-Weight for tough grinding and heavy material removal on hard metals and flat surfaces

plastics & composites

stone & marble

o   Initial blending of welds or seams

·         Can be used on a large variety of materials

·         J-Weight if you need flexibility for finishing

o   Light surface cleaning

· Can be used for finishing and polishing stainless steel

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

or sanding curved surfaces

· Can also be used as a cheaper option for general metal sanding

·         Y-weight polyester backing