SYNTHETIC DIAMONDS FOR RESIN BOND APPLICATIONS
RS Mesh Series of Resin Synthetic Diamonds is our most popular general purpose diamond product for application
in resin bonded diamond wheels. RS Series Synthetic Diamonds for Resin Bond Application are available from high
friability RS2 diamonds to semi-friable RS6 diamonds.

RS4 Synthetic Diamonds - uniformly friable uncoated crystals with uniform diamond characteristics (crystal shape
and strength) which enable controlled micro fracturing for wheels self sharpening and free cutting action. RS4
Diamond is our most frequently used product. Uncoated and Ni56% coated RS4 Diamonds are available from our
stock for immediate delivery.

RS2 Synthetic Diamonds – high friability crystals with agglomerated crystal shapes. RS2 Diamonds are available for
special orders only.

RS3 Synthetic Diamond – slightly more friable than RS4 crystals. RS3 Ni56% - 60/80 and RS3 Ni56% - 80/100
diamonds are available from our stock for immediate delivery. Uncoated RS3 Diamonds are available from 60/80 to
120/140 sizes for special orders only.

RS6 Synthetic Diamonds - blockier (stronger) than RS4, semi-friable crystals. RS4 Ni56% diamonds are available
from our stock for immediate delivery. Uncoated RS6 Diamonds are available for special orders.

RSM Micron Powders - precisely graded friable diamond micron powder with blocky, uniformly strength crystals.
Refer to the table below for size availability.
RS Series Diamonds Availability - Range of Sizes
Size Designation
Type
ANSI B74-16
US Mesh
FEPA
Micron Range
RS-3
RS-4
RS-6
60/70 / 70/80
D251 / D213
250/180
special order
stock item
special order
80/100
D181
180/150
special order
stock item
special order
100/120
D151
150/125
special order
stock item
special order
120/140
D126
125/106
special order
stock item
special order
140/170
D107
106/90
not available
stock item
special order
170/200
D91
90/75
not available
stock item
special order
200/230
D76
75/63
not available
stock item
special order
230/270
D64
63/53
not available
stock item
special order
270/325
D54
53/45
not available
stock item
special order
325/400
D46
45/38
not available
stock item
special order
RS - Ni56% Series Diamonds Availability - Range of Sizes
Size Designation
Type
ANSI B74-16
US Mesh
FEPA
Micron Range
RS-3 Ni56%
RS-4 Ni56%
RS-6 Ni56%
60/70 / 70/80
D251 / D213
250/180
stock item
stock item
stock item
80/100
D181
180/150
stock item
stock item
stock item
100/120
D151
150/125
special order
stock item
stock item
120/140
D126
125/106
special order
stock item
stock item
140/170
D107
106/90
not available
stock item
stock item
170/200
D91
90/75
not available
stock item
stock item
200/230
D76
75/63
not available
stock item
stock item
230/270
D64
63/53
not available
stock item
stock item
270/325
D54
53/45
not available
stock item
stock item
325/400
D46
45/38
not available
stock item
stock item
400/500
D35
40/32
not available
stock item
not available
RSM Series Micron Powders - Typical Sizes and Applications
(* - denotes availability of Ni30% and Ni56% coating as a special order item)
Micron
Range
(stock items)
Alternate
Designation
Bureau of
Standards
Equivalent
FEPA
Approx.
Mesh
Equivalent
Typical Applications
0-1/2
 
1/4
 
100,000
P
o
l
i
s
h
i
n
g
 
 
0-1
 
1/2
 
50,000
0.5-1.5
 
 
 
 
0-2
 
1
M1.0
15,000
1-2
 
1.5
M1.6
13,000
1-3
 
2
 
12,000
2-3
 
2.5
M2.5
10,000
2-4
 
3
 
8,000
3-5
3-6
4
 
5,000
4-8
4-6
6
M6.3
3,000
5-7
5-10
7.5
 
2,200
L
a
p
p
i
n
g
7-10
6-12
8
M10
2,000
8-12
8-16
9
 
1,800
10-14
10-15
12
 
1,500
 
10-20*
 
14
M16
1,300
14-20*
12-22
15
 
1,200
G
r
i
n
d
i
n
g
15-25*
 
20
 
1,000
20-30*
 
25
M25
800
22-36*
20-40
30
 
600
30-40*
 
35
M40
550
 
40-50*
36-54
45
 
520
40-60*
 
50
 
500
50/60*
       

Rosst Enterprises, Inc.
5 Rottkamp Place, Old Bethpage, NY 11804
Tel: 1-516-293-8312 Fax: 1-516-756-0893
info@rosst.com

Copyright © 2000-2020 Rosst Enterprises, Inc.
RS Series Diamonds Relative Crystal Strength in Newtons
(Mechanical Compression Strength)
Size Designation
Type
ANSI B74-16
US Mesh
FEPA
RS2
RS3
RS4
RS6
60/70 / 70/80
D251 / D213
-
4.2
6.0
9.2
80/100
D181
-
4.1
6.0
8.0
100/120
D151
2.2
3.5
5.0
6.8
120/140
D126
2.0
3.1
4.1
5.8
140/170
D107
1.8
3.0
3.6
4.9
170/200
D91
1.7
2.7
2.9
4.4
200/230
D76
1.6
2.6
2.7
4.1
230/270
D64
1.6
2.5
2.6
4.0
270/325
D54
1.5
2.2
2.5
3.9
325/400
D46
1.5
2.0
2.5
3.8