Dieter Schmid - Fine Tools
	Georg-Wilhelm-Str. 7 A - 10711 Berlin - Germany Tel ++49 (0)30 342 1757 - Fax ++49 (0)30 342 1764 Website: www.fine-tools.com

Dieter Schmid - Fine Tools Georg-Wilhelm-Str. 7 A - 10711 Berlin Tel ++49 30 342 1757 - Fax ++49 30 342 1764 Website: www.fine-tools.com

Overview Miscellaneous Sanding Paper - wet - dry - Fibre backed Japanese Waterstones Missarkastones, Diamond Stones, Whetstones for Scythes, Belgian Breccias

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
		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