... , High Tool Life & Processing Efficiency Grit Size available:16#, 24#, 36#, 46#, 60#, 80#, 100#, 120#, 150#, 180#, 220#, 240#, 280 ... Grit Solution for 16 Head Polishing Machine - Solution for NO Diamond metal grinding blocks/FickertsPolishing Head #1- #8: 16#, 24 ... #, 36#, 46#, 60#, 80#, 120#, 120#, Polishing Head #9- #16: 220#, ...