Conversion Chart Abrasives - Grit Sizes

Use this Conversion chart to view the different standards and as a guide to know when you can start using Micro-mesh. Use conventional abrasives as normal prior to going into the Micro-mesh stage.

Definitions:

FEPA (Fédération Européenne des Fabricants de Produits Abrasifs) Federation of European Producers of Abrasives. The FEPA distinquishes between grain for sanding paper (FEPA P) and grain for sharpening stones or wheels (FEPA F) The decisive factor for comparison is FEPA F. FEPA P is only used for sanding paper.
JIS (Japanese Industrial Standard) issued by the Japanese Standards Association.
ANSI American National Standards Institute.
MICRON (μ) is the letter "micron" in the Greek alphabet. As measuring unit it describes 1 thousandth of a millimeter (1 μ = 0.001mm). A Micron row is added to each FEPA P, FEPA F, JIS und ANSI row for comparison.
MM Micro-mesh grit in comparison to other standards.

The grit sizes are defined by the number of lines per inch (25,4 mm) length of each sieve e.g. 150 lines per inch. Abrasives grit 150 will pass this sieve. This chart is a general overview only. We are not responsible for any errors.

FEPA P
Paper
Micron
μm
FEPA F
Grain
Micron
μm
JIS R6001
Japan
1973
Micron
μm
ANSI Micron
μm
MM
    F5 4125          
    F6 3460          
    F7 2900          
    F8 2460          
    F10 2085          
P12 1815 F12 1765          
    F14 1470          
P16 1324 F16 1230          
P20 1000 F20 1040          
    F22 885          
P24 764 F24 745          
P30 642 F30 625          
P36 538 F36 525          
P40 425 F40 438          
    F46 370          
P50 336 F54 310          
P60 269 F60 260 J60        
    F70 218          
P80 201              
    F80 185          
P100 162              
    F90 154          
P120 125 F100 129 J100 125 100 125  
    F120 109          
P150 100              
P180 82 F150 82 J150 80 150 80  
P220 68 F180 69 J180 70 180 70  
    F220 58 J220 58 220 58  
                 
Micro grains J240 80      
        J280 68      
P240 58.5 ± 2     J320 57      
P280 52.2 ± 2 F230 53 ± 3     240 51  
P320 46.2 ± 1.5     J360 48      
    F240 44.5 ± 2          
P360 40.5 ± 1.5     J400 40 280 41.5  
P400 35.0 ± 1.5 F280 36.5 ± 1.5          
        J500 34 320 33  
P500 30.2 ± 1.5 F320 29.2 ± 1.5 J600 29 360 28  
P600 25.8 ± 1              
P800 21.8 ± 1 F360 22.8 ± 1.5 J700 24 400 22.5 1500
P1000 18.3 ± 1     J800 20      
    F400 17.3 ± 1 J1000 16 500 18  
P1200 15.3 ± 1         600 14 1800
P1500 12.6 ± 1 F500 12.8 ± 1 J1200 13     2400
P2000 10.3 ± 0.8         800 12 3200
    F600 9.3 ± 1 J1500 10      
P2500 8.4 ± 0.5     J2000 8 1000 7.8  
P3000 7              
P5000 5              
    F800 6.5 ± 1          
    F1000 4.5 ± 0.8 J3000 5 1200 5.5 4000
                6000
    F1200 3.0 ± 0.5 J4000 3     8000
    F1500 2.0 ± 0.4 J6000 2     12000
    F2000 1.2 ± 0.3 J8000 1.2      


 
Dieter Schmid - Fine Tools
logo
www.fine-tools.com
You are here:   Homepage   →   Abrasives, Finishes, Glue   →   Conversion Chart Abrasives - Grit Sizes
Inc VAT Shipping is extra  |  99 % in stock!  |  Your cart  |  Fast order  |  Contact us  |  Help  |  Deutsch  |  Italiano
nachoben  |  Inc VAT Shipping is extra  |  Impressum  |  Business Terms  |  Consumer Revocation Right  |  Data protection  |  Payment and Shipping  |  Regulation on Batteries