Grit Scales
1
1 Micron = Inches MMR MMX CAMI Scale ISO/FEPA (P-scale) Finishing Scale Grit Particle Size in Microns Particle Size in Inches 4.5 1842 0.07252 P12 1815 0.07146 P16 1324 0.05213 16 4 1320 0.05197 P20 1000 0.03937 M 20 3.5 905 0.03563 P24 764 0.03008 A 24 3 715 0.02815 30 2.5 638 0.02512 C P30 642 0.02528 36 2 535 0.02106 R P36 538 0.02118 40 1.5 428 0.01685 O P40 425 0.01673 50 1 351 0.01382 G P50 336 0.01323 60 0.5 268 0.01055 R P60 269 0.01059 P80 201 0.00791 I 80 0 192 0.00756 P100 A200 162 0.00638 T 100 2/0 141 0.00555 P120 125 0.00492 S 120 A160 3/0 116 0.00457 P150 100 0.00394 150 A130 4/0 93 0.00366 180 5/0 82 0.00323 P180 A110 78 0.00307 220 6/0 68 0.00268 P220 A90 66 0.00260 P240 A75 58.5 0.00230 240 A65 7/0 53.5 0.00211 P280 52.2 0.00206 M P320 A60 46.2 0.00182 80 280 8/0 44.0 0.00173 I P360 40.5 0.00159 100 320 9/0 36.0 0.00142 C P400 A45 35.0 0.00138 P500 30.2 0.00119 R 150 360 28.8 0.00113 P600 A35 25.8 0.00102 O 1500 180 400 A30 10/0 23.6 0.00093 P800 A25 21.8 0.00086 G 500 19.7 0.00078 P1000 18.3 0.00072 R 1800 240 600 16.0 0.00063 P1200 A16 15.3 0.00060 I P1500 12.6 0.00050 2400 320 800 12.2 0.00048 T P2000 10.3 0.00041 1000 9.2 0.00036 S P2500 8.4 0.00033 3200 360 1200 6.5 0.00026 3600 400 1350 4000 600 1500 3? 6000 800 2000 1? 8000 1200 2500 12000 submicron MMR MMX CAMI Scale ISO/FEPA (P-scale) Finishing Scale Grit Particle Size in Microns Particle Size in Inches Description Scales Very Fine Extra Fine Extra Fine Super Fine Super Fine Ultra Fine Medium Medium Fine Fine Very Fine Sandpaper Grit Scales 0.00003937007874 Description Scales Very Coarse Very Coarse Coarse Coarse
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Transcript of Grit Scales
1 Micron = Inches
MMR MMXCAMI Scale
ISO/FEPA (P-scale)
Finishing Scale Grit
Particle Size in
Microns
Particle Size in Inches
4.5 1842 0.07252P12 1815 0.07146P16 1324 0.05213
16 4 1320 0.05197P20 1000 0.03937
M 20 3.5 905 0.03563P24 764 0.03008
A 24 3 715 0.0281530 2.5 638 0.02512
C P30 642 0.0252836 2 535 0.02106
R P36 538 0.0211840 1.5 428 0.01685
O P40 425 0.0167350 1 351 0.01382
G P50 336 0.0132360 0.5 268 0.01055
R P60 269 0.01059P80 201 0.00791
I 80 0 192 0.00756P100 A200 162 0.00638
T 100 2/0 141 0.00555P120 125 0.00492
S 120 A160 3/0 116 0.00457P150 100 0.00394
150 A130 4/0 93 0.00366180 5/0 82 0.00323
P180 A110 78 0.00307220 6/0 68 0.00268
P220 A90 66 0.00260P240 A75 58.5 0.00230
240 A65 7/0 53.5 0.00211P280 52.2 0.00206
M P320 A60 46.2 0.0018280 280 8/0 44.0 0.00173
I P360 40.5 0.00159100 320 9/0 36.0 0.00142
C P400 A45 35.0 0.00138P500 30.2 0.00119
R 150 360 28.8 0.00113P600 A35 25.8 0.00102
O 1500 180 400 A30 10/0 23.6 0.00093P800 A25 21.8 0.00086
G 500 19.7 0.00078P1000 18.3 0.00072
R 1800 240 600 16.0 0.00063P1200 A16 15.3 0.00060
I P1500 12.6 0.000502400 320 800 12.2 0.00048
T P2000 10.3 0.000411000 9.2 0.00036
S P2500 8.4 0.000333200 360 1200 6.5 0.000263600 400 13504000 600 1500 3?6000 800 2000 1?8000 1200 2500
12000 submicronMMR MMX CAMI
ScaleISO/FEPA (P-scale)
Finishing Scale
Grit Particle Size in
Microns
Particle Size in Inches
Description Scales
Very Fine
Extra FineExtra Fine
Super Fine
Super Fine
Ultra Fine
MediumMedium
Fine
Fine
Very Fine
Sandpaper Grit Scales0.00003937007874
Description Scales
Very Coarse
Very Coarse
Coarse
Coarse
