GND Series - Inserts Continued
Coated Carbide
Dimensions (Inch / mm )
Cermet Uncoated Carbide
GCMN Inserts
Grooving Width
Nose Radius
Overall Length
Precision Machining
Thickness
S
K
P
N
Sumitomo Catalog Number
Insert Seat Size
Fig.
CW RE
L
S
H10
GCMN2002-ML GCMN3002-ML GCMN3002-ML1 GCMN3004-ML GCMN3125R0.5-ML GCMN4002-ML GCMN4004-ML GCMN4004-ML1 GCMN4008-ML GCMN5187R1.0-ML GCMN5004-ML GCMN5004-ML1 GCMN5008-ML GCMN6004-ML GCMN6004-ML1 GCMN6008-ML GCMN6250R1.0-ML GCMN7004-ML GCMN7008-ML GCMN8004-ML GCMN8008-ML GCMN2010-RN GCMN3015-RN GCMN3015-RN1 GCMN3025-RN GCMN4020-RN GCMN5187-RN GCMN5025-RN GCMN6030-RN GCMN6030-RN1 GCMN6250-RN GCMN3015-RG
.078 .0078 .831 .142 4 .118 .0078 .831 .150 4 .157 .0156 1.039 .157 4 .197 .0156 1.039 .161 4 .236 .0156 1.039 .177 4 .078 .0078 .831 .142 5 .118 .0078 .831 .150 5 .157 .0078 1.039 .157 5 .078 .0012 .882 .142 5 Dimensions (Inch / mm ) .078 .0012 .882 .142 5 .118 .0012 .882 .150 5 .118 .0012 .882 .150 5 .187 .0938 1.0709 .161 2 .197 .0984 1.0709 .161 2 .236 .1181 1.0827 .177 2 .250 .1250 1.0827 .177 2 .276 .1378 1.144 .217 2 .315 .1575 1.1516 .236 2 .078 .0078 .831 .142 1 .118 .0078 .831 .150 1 .118 .0078 .831 .150 6 .118 .0156 .831 .150 1 .125 .0078 .831 .150 1 .157 .0078 1.039 .157 1 .157 .0156 1.039 .157 1 .157 .0156 1.039 .157 6 .157 .0313 1.039 .157 1 .187 .0156 1.039 .161 1 .197 .0156 1.039 .161 1 .197 .0156 1.039 .161 6 .197 .0313 1.039 .161 1 .236 .0156 1.039 .177 1 .236 .0156 1.039 .177 6 .236 .0313 1.039 .177 1 .250 .0156 1.039 .177 1 .276 .0156 1.132 .217 1 .276 .0313 1.132 .217 1 .315 .0156 1.132 .236 1 .315 .0313 1.132 .236 1 .118 .0590 .882 .150 3 .118 .0590 .882 .150 7 .125 .0625 .882 .150 3 .157 .0787 1.102 .157 3 .187 .0938 1.112 .161 3 .197 .0984 1.106 .161 3 .236 .1181 1.106 .177 3 .236 .1181 1.106 .177 7 .250 .1250 1.112 .177 3 .118 .0590 .831 .150 2 .125 .0625 .831 .150 2 .157 .0787 1.039 .157 2
2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 8 8 2 3 3 3 4 5 5 6 6 6 3 3 4 5 5 6 6 7 8
l l l l l l
l l l
Fig. 6
Fig 1
2-RE
l l l l l l l
L
l l l l l l l
l l l
ML Low Feed
Multi function (traversing)
l l l l l l l l l l l l l
Fig. 1
l l l
4 RE
L
l l l l l
l
l l l
l l l l l l l l l l l
l l l l
.078 .0394 .854 .142 3 Fig. 3
l l
Fig 1
l l l l l l
4-RE
l l l
L
l l
l l
Profiling / Radius Grooving
l l l l l
RN
Fig. 7
l l
l l
Fig 2
RE
l l l l l l l l l l
L
l l l
l l
l l
l l l l l
GCGN2002-GA GCGN3002-GA GCGN4004-GA GCGN5004-GA GCGN6004-GA GCMN3125-RG GCMN4020-RG GCMN5187-RG GCMN5025-RG GCMN6030-RG GCMN6250-RG GCMN7035-RG GCMN8040-RG
l l l
l
Fig. 2
l l l l
4 RE
RG General Feed
l l l
l
Profiling
l l l l l l l l
/
l l l
l
l l l l l l l l
2 3 4 5 6 2 3 4 2 2 3 3
l l l l l
Fig. 4
For Non Ferrous Materials
4 RE
GA
L
Type Lead Angle
Cat. No.
R L RLRLRLRLRLRLRLRL R L R L
GCM_2002-CG-05 GCM_3002-CG-05 GCM_4002-CG-05
l llllllllll ll l l llllll l ll l l llllll l ll
Fig. 5
CG 5°
4 RE
Cut-off (Handed)
10° GCM_20003-CF-10 l lllll 15° GCM_20003-CF-15 l lllll 10° GCM_30003-CF-10 l lllll 15° GCM_30003-CF-15 l lllll
L
CF
See page 15 for RN / RG Description and Comparison GND Insert - CBN Grade: BN7500 GCMN Inserts Shape Sumitomo Stock
l = USA Stocked item = World Wide Warehouse Item
12 & 13
Recommended Cutting Conditions
Coated CBN
Dimensions (Inch / mm )
Insert Seat Size
Nose Radius
Overall Length
Catalog Number
Fig.
Grooving Width
Width Tolerance
Thickness
Function Chipbreaker
Fig 2
.078 .118 .157 .197 .236 .078 .118 .157 .197 .236 .118 .157 .197 .236
.0394 .8543 .142 .0590 .8819 .150 .0787 1.1024 .157 .0984 1.1063 .161 .1181 1.1063 .177 .0394 .8543 .142 .0590 .8819 .150 .0787 1.1024 .157 .0984 1.1063 .161 .1181 1.1063 .177
2 3 4 5 6 2 3 4 5 6 3 4 5 6
l l l l l l l
GCMN2010P GCMN3015P GCMN4020P GCMN5025P
Fig. 8
RE
Profiling / Radius Grooving
±.0012 (. 03 )
—
L
GCMN6030P GCMN2010P-LF GCMN3015P-LF
13
BN7500 Recommended Cutting Conditions
Fig 2
Fig. 9
RE
Profiling / Radius Grooving
±.0012 (. 03 )
LF
L
GCMN4020P-LF l GCMN5025P-LF l GCMN6030P-LF l
Fig 1
2-RE
Fig. 10
.8310 .150 1.0394 .157 1.0394 .161 1.0394 .177
l l l l
GCMN30040-N GCMN40040-N GCMN50040-N GCMN60040-N
L
Turning / Grooving
±.0012 (. 03 )
—
.0157
20
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