Mesh Size Chart

The superabrasive products we offer in mesh sizes (coarser than approximately 35 μm) comply with the ISO standard (ISO 6106:2013), which was established by harmonizing ANSI and FEPA*1.

(Note)*1 In the FEPA wide range, the 16/20 No. 3 sieve (850→840 μm) and the 40/50 No. 1 sieve (645→600 μm)

Note that the particle size specifications defined in JIS B4130-1998 “Diamond/CBN Tools—Particle Size of Diamond or CBN Grinding Grains” use the same sieve aperture sizes as those in the ISO standard.

Furthermore, since the specified residual and passing amounts are less stringent than those in the ISO standard, our products based on the ISO standard also meet the JIS standard.

Particle size distribution requirements for narrow-range superabrasives in ISO 6106:2013

Grain size designation			No. 1 Sieve	No. 2 Sieve		No. 3 Sieve			No. 4 Sieve
ISO Designation	USAmesh designation	FEPA designation	Maximum residue level: 0.1% (μm)	Cap provision		Minimum requirement			Max. 0.5% pass rate (μm)
ISO Designation	USAmesh designation	FEPA designation	Maximum residue level: 0.1% (μm)	（μm）	Minimum requirement	（μm）	Maximum residue limit (%)	Maximum throughput (%)	Max. 0.5% pass rate (μm)
1181	16/18	1181	1830	1280	5	1010	93	5	710
1001	18/20	1001	1530	1080	5	850	93	5	600
851	20/25	851	1280	915	5	710	93	5	505
711	25/30	711	1080	770	5	600	93	5	425
601	30/35	601	915	645	5	505	93	5	360
501	35/40	501	770	541	5	425	93	5	302
426	40/45	426	645	455	5	360	93	5	255
356	45/50	356	541	384	5	302	93	5	213
301	50/60	301	455	322	5	255	93	5	181
251	60/70	251	384	271	5	213	93	5	151
213	70/80	213	322	227	5	181	93	5	127
181	80/100	181	271	197	7	151	90	7	107
151	100/120	151	227	165	7	127	90	7	90
126	120/140	126	197	139	7	107	90	7	75
107	140/170	107	165	116	8	90	88	8	65
91	170/200	91	139	97	8	75	88	8	57
76	200/230	76	116	85	8	65	88	8	49
64	230/270	64	97	75	8	57	88	8	41
54	270/325	54	85	65	12	49	83	12	32
46	325/400	46	75	57	12	41	83	12	28
39	400/500	39	65	49	15	32	80	15	25
33	500/600	33	57	41	15	28	80	15	20

Particle size distribution requirements for wide-range superabrasives in ISO 6106:2013

Grain size designation			No. 1 Sieve	No. 2 Sieve		No. 3 Sieve			No. 4 Sieve
ISO Designation	USAmesh designation	FEPA designation	Maximum residue level: 0.1% (μm)	Cap provision		Minimum requirement			Max. 0.5% pass rate (μm)
ISO Designation	USAmesh designation	FEPA designation	Maximum residue level: 0.1% (μm)	（μm）	Minimum requirement	（μm）	Maximum residue limit (%)	Maximum throughput (%)	Max. 0.5% pass rate (μm)
1182	16/20	1182	1830	1280	5	850	93	5	600
852	20/30	852	1280	915	5	600	93	5	425
712	25/35	712	1080	770	5	505	93	5	360
602	30/40	602	915	645	5	425	93	5	302
502	35/45	502	770	541	5	360	93	5	255
427	40/50	427	645	455	5	302	93	5	213
357	45/60	357	541	384	5	255	93	5	181
302	50/70	302	455	322	5	213	93	5	151
252	60/80	252	384	271	5	181	93	5	127

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The size chart above is included in our catalog.
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About Global Diamond

At Global Diamond, we aim to resolve and address any challenges or issues you may be facing with your current diamond and CBN abrasives from the following three perspectives. We go beyond simply offering catalog selections; through customization, we work closely with you to help you achieve a better final product.

Evaluation and Recommendations for Your Current Abrasive Grains
Compatible with special mesh sizes
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We also offer contract analysis services

Drawing on the extensive data and proven track record that comes from being a specialized manufacturer that has conducted its own incoming inspections of abrasive grains, we offer contract analysis services for the samples you provide.

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If you're having trouble selecting the right superabrasive product, please feel free to contact us. We'll help you find the superabrasive product that best suits your needs.

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