| GRIT | MICRONS | GRIT | MICRONS |
| 1000(fine) | 7(small) | 90 | 145 |
| 900 | 9 | 80 | 165 |
| 800 | 12 | 70 | 203 |
| 600 | 16 | 60 | 254 |
| 320 | 31 | 54 | 305 |
| 700 | 32 | 46 | 356 |
| 280 | 39 | 36 | 483 |
| 500 | 40 | 30 | 559 |
| 400 | 45 | 24 | 686 |
| 240 | 50 | 20 | 940 |
| 220 | 63 | 16 | 1092 |
| 180 | 76 | 14 | 1346 |
| 150 | 89 | 12 | 1600 |
| 120 | 102 | 10 | 1854 |
| 100 | 122 | 8(coarse) | 2210(large) |
THIS CHART IS USEFUL FOR CHOOSING ABRASIVE BLASTING MATERIAL AND SANDPAPERS.GRIT NUMBERS RANGE FROM #1000(FINE)TO #8(COARSE).
SANDPAPERS, BOTH WET AND DRY TYPES,COMMONLY USED IN MODEL RAILROADING RANGE FROM 180 TO 1000 GRIT. 180 GRIT IS VERY AGRESSIVE
BLASTING ABRASIVES COMMONLY USED IN MODEL RAILROADING ARE 50 TO 75 MICRONS.
© S.A. McCall