ELECTROPLATED DIAMOND MANDRELS
Electroplated Diamond Mandrels are precision tools used for internal grinding, polishing, and contouring of hard, brittle, or abrasive materials such as glass, ceramics, quartz, and sapphire.
Key Features
-
Electroplated Bond: Diamond particles are held in place by a single electroplated nickel layer, exposing sharp diamond edges for aggressive cutting.
-
Mandrel Core: Usually made from steel or stainless steel with a precision-shafted shank for secure tool holding.
-
High Accuracy: Concentricity and dimensional control allow for consistent internal surface finishing.
-
Shapes & Sizes: Available in cylindrical, conical, bullet, or custom profiles for different hole geometries.
Advantages
-
Free-Cutting Action – Minimal heat generation and reduced risk of workpiece damage.
-
Single Layer Design – Maximum exposure of diamond grit for faster stock removal.
-
Custom Profiles Possible – Can be made for unique contours and internal geometries.
-
No Dressing Required – Unlike resin or metal bond wheels, electroplated tools maintain shape until diamond layer wears.
Common Applications
-
Precision internal grinding of small bores in optics manufacturing (lenses, prisms).
-
Machining ceramic and carbide components.
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Fabricating medical devices (orthopedic implants, surgical instruments).
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Tool and die polishing for hard alloy cavities.
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Aerospace and electronics component finishing.
Call (480) 966-9311 or Add to Quote for pricing.
Specifications
ITEM
DM015
DM020
DM025
DM030
DM040
DM050
DM060
DM080
DM100
DM120
DM140
DM160
DM180
DM200
DM235
DM250
DM275
DM335
DM375
DM500
DM625
DM750
DM1000
A
0.015
0.020
0.025
0.030
0.040
0.050
0.060
0.080
0.100
0.120
0.140
0.160
0.180
0.200
0.235
0.250
0.275
0.335
0.375
0.500
0.625
0.750
1.000
B
0.100
0.100
0.100
0.100
0.100
0.100
0.125
0.150
0.150
0.150
0.200
0.200
0.235
0.235
0.275
0.275
0.300
0.300
0.300
0.400
0.400
0.500
0.500
C
0.187
0.187
0.187
0.250
0.250
0.250
0.500
0.500
0.500
0.500
0.625
N/A
N/A
1.000
1.000
1.000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
D
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.250
0.250
0.250
0.250
0.250
0.250
0.375
0.375
0.375
0.375
L
2.150
2.150
2.150
2.150
2.150
2.150
2.150
2.150
2.150
2.150
2.150
2.150
2.150
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.500
3.500
R
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.125
0.125
0.200
0.200
0.250
0.350
0.400
0.700
R1
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.040
0.040
0.040
0.040
0.050
0.050
0.050
0.100
GRIT
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
100/120
100/120
100/120
100/120
100/120
100/120
100/120
100/120
100/120
100/120
100/120
ITEM:
DM015
A:
0.015
B:
0.100
C :
0.187
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM020
A:
0.020
B:
0.100
C :
0.187
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM025
A:
0.025
B:
0.100
C :
0.187
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM030
A:
0.030
B:
0.100
C :
0.250
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM040
A:
0.040
B:
0.100
C :
0.250
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM050
A:
0.050
B:
0.100
C :
0.250
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM060
A:
0.060
B:
0.125
C :
0.500
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM080
A:
0.080
B:
0.150
C :
0.500
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM100
A:
0.100
B:
0.150
C :
0.500
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM120
A:
0.120
B:
0.150
C :
0.500
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM140
A:
0.140
B:
0.200
C :
0.625
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM160
A:
0.160
B:
0.200
C :
N/A
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
200/230
ITEM:
DM180
A:
0.180
B:
0.235
C :
N/A
D:
0.125
L:
2.150
R:
N/A
R1:
N/A
GRIT:
100/120
ITEM:
DM200
A:
0.200
B:
0.235
C :
1.000
D:
0.250
L:
3.000
R:
N/A
R1:
N/A
GRIT:
100/120
ITEM:
DM235
A:
0.235
B:
0.275
C :
1.000
D:
0.250
L:
3.000
R:
N/A
R1:
N/A
GRIT:
100/120
ITEM:
DM250
A:
0.250
B:
0.275
C :
1.000
D:
0.250
L:
3.000
R:
0.125
R1:
0.040
GRIT:
100/120
ITEM:
DM275
A:
0.275
B:
0.300
C :
N/A
D:
0.250
L:
3.000
R:
0.125
R1:
0.040
GRIT:
100/120
ITEM:
DM335
A:
0.335
B:
0.300
C :
N/A
D:
0.250
L:
3.000
R:
0.200
R1:
0.040
GRIT:
100/120
ITEM:
DM375
A:
0.375
B:
0.300
C :
N/A
D:
0.250
L:
3.000
R:
0.200
R1:
0.040
GRIT:
100/120
ITEM:
DM500
A:
0.500
B:
0.400
C :
N/A
D:
0.375
L:
3.000
R:
0.250
R1:
0.050
GRIT:
100/120
ITEM:
DM625
A:
0.625
B:
0.400
C :
N/A
D:
0.375
L:
3.000
R:
0.350
R1:
0.050
GRIT:
100/120
ITEM:
DM750
A:
0.750
B:
0.500
C :
N/A
D:
0.375
L:
3.500
R:
0.400
R1:
0.050
GRIT:
100/120
ITEM:
DM1000
A:
1.000
B:
0.500
C :
N/A
D:
0.375
L:
3.500
R:
0.700
R1:
0.100
GRIT:
100/120
ITEM:
A:
B:
C :
D:
L:
R:
R1:
GRIT:
