Conversion Chart Abrasives - Grit Sizes | FINE TOOLS
MM Micro-mesh grit in comparison to other standards. The grit sizes are defined by the nuer of lines per inch (25.4 mm) length of each sieve e.g. 150 lines per inch. Abrasives grit 150 will pass this sieve. This chart is a general overview only. We are not responsible for any errors.