... precision casting3 Grit Size Available (F series for bonded abrasive and sandblasting, P series for coated abrasive)F series: F4, F8, F10, F12, ... , F320, F360, F400, F500, F600, F800, F1000, F1200,F1500,F2000P series: P8, P10, P12, P16, P24, P30, P36, P40, P50, ... .591.561.541.511.491.481.46 Grit Size Available (P) 12162024303640506080100120150180220 Particle Size Distribution (PSD) According to FEPA – ...