5 pack - 3" 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

Choosing a Backing Weight

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

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

· Medium Grits (100-180): For blending

plastics & composites

o   Achieving a smooth or satin-like finish

· Best for wood sanding

and intermediate smoothing

· Y-weight polyester backing

o   Pre-polishing metal surfaces

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

·         Y-weight polyester backing