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External Grooving (External / Face Grooving) Toolholders
KGMM
L2F1 H3 B
5 hW
Grooving H2 H1
T
T Right-hand shown L1
KGMS
F1 F2 H3 B
T
W
5 L2
G
h H2 H1
Right-hand shown L1
Toolholder Dimensions
Std. Dimension (mm) Width Spare Parts
W (mm)
Screw Wrench
MIN MAX
Description
R L H1=h H2 H3 B L1 L2 F1 F2 T
KGMM 1212H-3 12 4 5 12 100 10.8 SB-5TR - LTW-20 -
KGMS 1616H-3 16 6 16 125 - -
2020K-3 20 - 20 25 14.8 - 4.8 3.0 5.0 - HH5X16 - LW-4
2525M-3 25 18.8 3.0 3.0 - -
1212H-3 12 4 3.0 5.0 HH5X25 -
1616H-3 16 25 150 23.8 SB-5TR - LTW-20 LW-3
2020K-3 20 - GS-50 - - LW-4
2525M-3 25 5 12 100 17 17 1.5 4.8 -
6 16 21.5 - - HH5X16 -
20 125 25 - HH5X25
25 150 30
• Dimension T shows available grooving depth. (See the table G52 for Face Grooving )
Applicable Inserts External Grooving
Applications Grooving / Traversing Grooving / Traversing Grooving Full-R / Copying Grooving Grooving Grooving Grooving Grooving Grooving
Ref. Page G18 G20 G20 G20 G20 G20
G18 G18 G18 MT G21
Insert NB TK TK CBN
MW MS MG PCD
Toolholder
KGMS 1212H-3 GMM3014.. - - GMM3014..R - - - - - -
GMG3020..MS GMG3020..R GMN3 GMN3
GMN4 GMN4
KGMM ...3 GMM3020..MW GMM3020..MS GMG3020..MG GMM3020..R GMM3020..MT GMM3020..NB GMM3020..TK GMN3..TK GMN5 GMN5
KGMS ...3 GMM4020..MW GMG4020..MS GMG3520..MG GMG4020..R GMN4..TK
GMM5020..MW GMM4020..MS GMG4020..MG GMM4020..R Grooving
GMG5020..MS GMG5020..MG GMG5020..R G20, G21
GMM5020..MS GMM5020..R
Applicable Inserts Face Grooving
Applications Grooving / Traversing Grooving / Traversing Grooving / Traversing Grooving / Traversing Grooving Full-R / Copying Grooving Grooving Grooving
Ref. Page G18 G20 G20 G20
G19 G18.19 G18 G18 G18 MT
Insert NB TK
MW MS MG
Toolholder
KGMS 1212H-3 - GMM3014..RU - - - - - - - -
GMG3020..MS GMG3020..R GMN3
GMN4
KGMM ...3 FGG 3020.. GMG3020..RU GMM3020..MW GMM3020..MS GMG3020..MG GMM3020..R GMM3020..MT GMM3020..NB GMM3020..TK GMN5
KGMS ...3 FGG 4020.. GMG4020..RU GMM4020..MW GMG4020..MS GMG3520..MG GMG4020..R GMN3..TK
FGG 5020.. GMG5020..RU GMM5020..MW GMM4020..MS GMG4020..MG GMM4020..R GMN4..TK
GMG5020..MS GMG5020..MG GMG5020..R
GMM5020..MS GMM5020..R
For recommended cutting conditions, see page G76
For recommended cutting conditions of CBN / PCD, see page G74
G24 : Std. Item : Check Availability R : Std. Item (R-hand Only) L : Std. Item (L-hand Only)
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