Electroplated CBN Mandrels
Electroplated CBN (Cubic Boron Nitride) mandrels are precision grinding and finishing tools designed for internal grinding, profiling, honing, and super-finishing of hard-to-machine materials. The mandrels are made by plating a single layer of CBN abrasive onto a steel, carbide, or other rigid shank, ensuring high accuracy and sharp cutting performance.
Key Features
-
Single-layer electroplated bond – strong adhesion between CBN grit and mandrel body.
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High accuracy – ideal for tight tolerance internal bores and precision cavities.
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Free-cutting action – sharp CBN crystals provide aggressive yet cool cutting.
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Custom shapes and sizes – available as straight, tapered, or form mandrels for specialized profiles.
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Versatility – mounted on carbide, steel, or other rigid shanks for stability.
Applications
-
Internal grinding of hardened steels, tool steels and superalloys.
-
Precision machining of aerospace, automotive, and bearing components.
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Grinding dies, molds, hydraulic sleeves, and valve seats.
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Super-finishing of small bores where conventional wheels cannot reach.
Advantages
-
Maintains form accuracy much longer than conventional abrasives.
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High stock removal rate with reduced heat generation.
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No dressing required (single-layer design).
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Capable of complex geometries for specialized bore finishing.
Call (480) 966-9311 or Add to Quote for pricing.
Specifications
ITEM#
BM015
BM020
BM025
BM030
BM040
BM050
BM060
BM080
BM100
BM120
BM140
BM160
BM180
BM200
BM235
BM250
BM275
BM335
BM375
BM500
BM625
BM750
BM1000
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#:
BM015
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#:
BM020
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#:
BM025
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#:
BM030
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#:
BM040
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#:
BM050
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#:
BM060
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#:
BM080
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#:
BM100
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#:
BM120
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#:
BM140
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#:
BM160
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#:
BM180
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#:
BM200
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#:
BM235
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#:
BM250
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#:
BM275
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#:
BM335
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#:
BM375
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#:
BM500
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#:
BM625
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#:
BM750
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#:
BM1000
A:
1.000
B:
0.500
C:
N/A
D:
0.375
L:
3.500
R:
0.700
R1:
0.100
GRIT:
100/120
