MACROGRITS			MICROGRITS
Grit designation	Mean Diameter in µm		Grit designation	Mean grain size ds50-value in μm
F 4	4890		F 230	53.0 ± 3
F 5	4125		F 240	44.5 ± 2
F 6	3460		F 280	36.5 ± 1.5
F 7	2900		F 320	29.2 ± 1.5
F 8	2460		F 360	22.8 ± 1.5
F 10	2085		F 400	17.3 ± 1
F 12	1765		F 500	12.8 ± 1
F 14	1470		F 600	9.3 ± 1
F 16	1230		F 800	6.5 ± 1
F 20	1040		F 1000	4.5 ± 0.8
F 22	885		F 1200	3.0 ± 0.5
F 24	745		F 1500	2.0 ± 0.4
F 30	625		F 2000	1.2 ± 0.3
F 36	525
F 40	438
F 46	370
F 54	310
F 60	260
F 70	218
F 80	185
F 90	154
F 100	129
F 120	109
F 150	82
F 180	69
F 220	58