Cut-off H1~ H28 KTKF Lateral side screw clamp toolholder H8 KTKFS (For sub spindle tooling) Lateral side screw clamp toolholder H10 KGD Integral Toolholder H15 KGD-S Separate Toolholder H17 KGM (For automatic lathe) Integral Toolholder H20 KGM Integral Toolholder H20 KGM-T Integral Toolholder H21 KTKB-SS / KTKB-S Blade H24 KTKTB / KTKTBF Toolblock H25 KTKH-S Integral Toolholder H26 Recommended Cutting Conditions H27 Product Lineup H2 Guide for Cut-Off H3 Summary of Cut-Off H4~H5 Cut-Off Toolholders (for small diameter cut-off) H6~H11 Cut-Off Toolholders (for 2-edge insert) H12~H17 Cut-Off Toolholders (for 2-edge insert) Grooving / Plunge & Turn H18~H22 Cut-Off Toolholders (for 1-edge insert) Cut-Off H23~H26 Technical Information H27 Alternative Toolholder Reference
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Cut-off - · PDF fileto set it in the pocket. 2) 1-edge insert 3) ... General Cut-Off 1-edge 2-edge G odchip con breaker pbreaker PH Chipbreaker PH Chipbreaker - edg Good chip con
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Cut-off
H1~H28
KTKF Lateral side screw clamp toolholder H8
KTKFS (For sub spindle tooling) Lateral side screw clamp toolholder H10
KGD Integral Toolholder H15
KGD-S Separate Toolholder H17
KGM (For automatic lathe) Integral Toolholder H20
KGM Integral Toolholder H20
KGM-T Integral Toolholder H21
KTKB-SS / KTKB-S Blade H24
KTKTB / KTKTBF Toolblock H25
KTKH-S Integral Toolholder H26
Recommended Cutt ing Conditions H27
Product Lineup H2
Guide for Cut-Off H3
Summary of Cut-Off H4~H5
Cut-Off Toolholders (for small diameter cut-off) H6~H11
¢ Cut-Off ToolsSeries Name Shape Advantage Applications
For Small Diameter Cut-Off
1) Insert clamp is side screw type from lateral side
2) 2-edge insert
3) Max. Cutting Dia.: f 16
1) For cut-off and grooving of small workpieces
2) For automatic lathe, small machine
KGD
1) Insert is clamped from top side
2) 1-edge and 2-edge inserts available
3) Integral type and separate type are available.
4) Max. Cutting Dia.: f 50
1) PM Chipbreaker … For Cut-Off2) PH Chipbreaker … For Cut-Off (High Feed Rate)
For Grooving3) PG Chipbreaker … For Cut-Off (for automatic lathe)
Sharp-Cutting Oriented4) PF Chipbreaker … For Cut-Off (for automatic lathe)
Low feed5) PQ Chipbreaker … For Cut-Off (for automatic lathe)
Medium feed
CERACUT Plunge&Turn
1) Insert is clamped from top side
2) 1-edge and 2-edge inserts available
3) Max. Cutting Dia.: f 60
1) For cut-off and grooving of small workpieces
2) For automatic lathe, small machine
3) TMR-Chipbreaker provides stable chip control up to high feed rate ranges.
CERACUT Cut-Off
1) Self-Clamping System Tap the insert lightly with a plastic hammer to set it in the pocket.
2) 1-edge insert
3) Blade type and Integral Shank type
4) Max. Cutting Dia.: f 120
1) For cut-off and deep grooving
2) Standard chipbreaker is general cut-off type.
Feed rate: over 0.1mm/rev
P-Chipbreaker is for cut-off at low feed rates
Feed rate: 0.03~0.08mm/rev
¢ Product Lineup
For Small Diameter Cut-Off
Long Shankfor automatic lathe
Cut-Off Dia.
f 5~f 12~f 16
KTKF ( H8) KTKFS ( H10)
For sub spindle tooling
Cut-Off Dia.
f 6~f 12f 14~f 16
Width: 0.5~2.0mm Width: 1.0~2.0mm
KGDBolt ClampCut-Off Dia.
f 12~f 50
KGD ( H15) KGD-S ( H17)
Width: 1.3~4.0mm Width: 2.0~4.0mm
CERACUT Plunge&Turn
(2-edge)
Bolt ClampCut-Off Dia.
f 18~f 60
KGM ( H20) KGM-T ( H21)
Width: 1.5~4.0mm, 3~8mm Width: 2.0~6.0mm
CERACUT Cut-Off(1-edge)
Toolholder TypeCut-Off Dia.
f 30~f 79
KTKH-S ( H26) KTKB-S(S) ( H24)
Blade typeCut-Off Dia.
f 32~f 120
Width: 2.2~5.1mm Width: 1.6~9.6mm
H3
Cut
-off
H
Guide for Cut-Off
Bigger boss
Sharp Corner Lead angleFig.2Fig. 1
¢ Tool Selection
¢ How to select cut-off inserts with/without lead angle (including sharp edge)
For Small Diameter Cut-Off KGD CERACUT
Plunge&TurnCERACUT
Cut-Off
Insert
1. Insert's Edge Number - - - ¡1-edge Insert…For Larger Dia. Workpiece (Max. f 120)2-edge Insert… For Smaller Dia. Workpiece
Cost per corner is reduced ¡ ¡ ¡ -
2. Use a neutral angle insert if there is no limit to the finished shape.TKF...S
TKF...NBTKFS...S
GDMGDMS GMM TKN
3. Use an angled insert to reduce the size of the remaining boss. TKF...DRGDM-&
GDMS-R-6D( Fig. 2)
GMM-&( Fig. 2)
TK&( Fig. 1)
4. Use a sharp-cornered lead-angled insert to make the remaining boss much smaller when machining small parts and thin parts. TKF...DR - GMM-&
( Fig. 2) -
5. Use the minimum width insert suitable for the machining. ¡ ¡ ¡ ¡
Toolholder
1. Use a suitable toolholder (blade) for the workpiece dia. ¡ ¡ ¡ ¡2. Use a more rigid toolholder (blade). ¡ ¡ ¡ ¡3. Use a back clamp toolholder if there is no space for clamping tools
from top side (automatic lathe). ¡ - - -
WorkpieceCut
ting
Edg
e H
eigh
t
Fig.3
1. Use a neutral angle insert if there is no limit to the nished shape.2. Use an angled insert to reduce the size of the remaining boss.3. Use a sharp-cornered lead-angled insert to make the remaining boss much smaller when machining small parts and thin parts.
¢ Caution1. Set the cutting edge height 0.1-0.2mm above the center height. (Fig.3)2. Be sure to perform wet processing. Apply enough coolant to the cutting edge.3. Keep a constant rate during processing so that optimum product life will be achieved.4. Cut off as close to the chuck as possible.5. Lower the feed rate to 1/2 to 1/3 at the near center to prevent impact caused by cutting.l Overuse of insert and toolholder (blade) may cause insert breakage and toolholder (blade)
damage.l Do not rework the insert and toolholder (blade) to prevent damage.l Clean the insert pocket well with compressed air when replacing insert.
Han
d of
Lea
d A
ngle
N(No Hand)
R(Right-hand)
L(Left-hand)
θ θ
· Angled (q) insert can reduce the burr size when cutting off.· When using a larger lead angle (q), cutting force becomes smaller, but the feed rate should be reduced.
* Clamp Screw can be operated from both front and back side.
*
KTKF& 1010JX-..only for above shape
KTKF& 2020..only for above shape
KTKF& 1616JX-..(F2=10mm)KTKF& 2020JX-..(F2=12mm)only for above shape
l Right-hand shown Right-hand Insert for Right-hand Toolholder.
Fig. 1
Recommended Cutting Conditions H27
φ D1
Main Spindle
1
Fig.1(When the edge is at the center)
Fig.2(When the edge is 1mm beyond the center)
1) When using Main Spindle only Workpiece maximum f D1 (Fig.1)=f Dmax Even if the cutting edge runs beyond the center line, the insert does not contact the workpiece, since the workpiece falls off.( The clearance between the insert and the workpiece is 0.2mm)
¢ How to Use
l Left-hand shown Left-hand Insert for Left-hand Toolholder.
Fig.2
<Goose-neck Holder>
KTKFL1620JX-12 shows above gure.
L1
T
BH
1H
1 hF1 T F1
8
1°
1°
l Toolholder Dimensions
Description
Std. Dimension (mm)
Dra
win
g
Spare Parts
Applicable Inserts
H6, H7
Clamp Screw Wrench
R L H1=h B L1 L2 F1 T
KTKF& 1010JX-12 N N 10 10
120
15 10
6
Fig. 1
SB-4590TRWN LTW-10S TKF12& …1212JX-12 N N 12 12
-12
1616JX-12 N N 16 16 162020JX-12 N N 20 20 20
KTKF& 1010JX-16 N N 10 10
120
20 10
8 SB-4590TRWN LTW-10S TKF16& …1212JX-16 N N 12 12
-12
1616JX-16 N N 16 16 162020JX-16 N N 20 20 20
KTKF& 1212F-12 N N12 12 85 - 12
6SB-4590TRWN LTW-10S
TKF12& …
1212F-16 N N 8 TKF16& …
KTKFL 1216JX-12 N 12 16120 -
166 Fig.2 SB-4590TRWN LTW-10S TKF12L …
1620JX-12 N 16 20 20· Dimension T shows the distance from the Toolholder to the cutting edge. H6, H7 for the actual cutting diameter.
Note: Cutting diameter of -12 type toolholder ( f Dmax ) depends on the insert grooving width.
NEW
NEW
H9
Cut
-off
H
N : Std. Item
Main Spindle Sub Spindle
φ D2
1
Fig.3(When the edge is at the center)
Fig.4(When the edge is 1mm beyond the center)
2) When using both Main and Sub spindlesIn this case, when the cutting edge runs beyond the center line, the insert will contact the workpiece, since the workpiece does not fall off.e.g.) When the cutting edge is programmed to run 1mm beyond the center.
Workpiece maximum, f D2 (Fig.4) [f Dmax−1mm×2] (mm) (The clearance between the insert and the workpiece is 0.2mm)
¢ Tough Edge, T Chipbreakerl Fracture resistance comparison (Interruption)
Cutting Edge (Front Relief Surface)
T Chipbreaker (PR1225) 3,000 passes
Competitor C700 Passes
Competitor D3,000 Passes
Tough Edge, T Chipbreaker (PR1225)
Competitor C
Competitor D
1,000 Passes
××
2,000 Passes 3,000 Passes
Compared to Comp. C and D, Tough Edge “T Chipbreaker” achieves superior fracture resistance in interrupted cutting.
10 10 120 15 22 26 5 6 SB-4050TRN LTW-10S TKFS12&1212F-12A N N12 12 85 -1212K-12B N N 120 26
KTKFS& 1010K-16A N N14~16
10 10 120 20 22 30 5 8 SB-4050TRN LTW-10S TKFS16&1212F-16A N N12 12 85 -1212K-16B N N 120 26
· Dimension T shows the distance from the Toolholder to the cutting edge. H10 for the actual cutting diameter. Recommended Cutting Conditions H11· Cutting diameter (f Dmax) depends on the insert grooving width.* Only Right-hand is available for L4 dimension.
N : Std. Item
Cut-Off Toolholders (for sub spindle tooling)
l As Fig.1 shows, use KTKFL (Left-hand) for the distance between main spindle and sub spindle.l As Fig.2 shows, KTKFS is recommended for small diameters and for the short distance between the main spindle and sub spindle.
¢ KTKFS (For small diameter cut-off)
¢ TKFS (For small diameter cut-off)
φ40(
-12A
,-16A
)φ5
0(-1
2B,-1
6B)
Sub
Spin
dle
Dia
.
h
φDmax
L4
L1L3
T F1
2°
BH
1
30°
1°
l Right-hand shown Right-hand Insert for Right-hand Toolholder
φ40(
-12A
-16A
)φ5
0(-1
2B-1
6B)
Sub
Spi
ndle
Dia
.
h
φDmax
T
2
L1L3
F1
2°1°BH
1
L2
30°
KTKFS&1010K-12AKTKFS&1010K-16A only for left shape.
l Left-hand shown Left-hand Insert for Left-hand Toolholder
InsertHanded insert shows Left-Hand
DescriptionDimension (mm)
W f Dmax
±0.
03θφd
T
W
H φDmax
rε
rε
TKFS12& 100-S 1.0 6
150-S 1.5 9
200-S 2.0 12
TKFS16& 150-S 1.5 14
200-S 2.0 16
Notes) As Fig.2 shows, the cutting diameter of the insert is indicated when the top of the cutting edge progresses 1mm from the center.
1 φ Dm
ax
Main Spindle
Sub Spindle
1
Main Spindle
φ Dm
ax
Sub Spindle
Fig. 1 Fig.2
H11
Cut
-off
H
Insert Description
Dimension (mm) Angle(°)
MEGACOATMEGACOAT NANO
PVD Coated Carbide Carbide
W f Dmax re T H f d q PR
1425
PR12
25
PR10
25
KW
10
Handed insert shows Left-Hand R L R L R L R L
T
W±0.0
3
H
φd
φDmax
rε
rε
θ TKFS12& 100-S 1.0 60.05 2.2 8.7 4.4 0°
N N N N N N N N150-S 1.5 9 N N N N N N N N200-S 2.0 12 N N N N N N N N
TKFS16& 150-S 1.5 14 0.05 2.2 9.5 4.4 0° N N N N N N N N200-S 2.0 16 N N N N N N N N
· As Fig.2 of H10 shows, the cutting diameter of the insert is indicated when the top of the cutting edge progresses 1mm from the center.* Lead angle shows the angle when installed in toolholder.
PM:Cut-Off (General Purpose)PH: Groove and Cut-off
(High feed rate)
(9) Lead AngleWithout Indication: 0°
6D: 6°15D: 15°
u Inserts Identi cation System
N : Std. ItemInserts are sold in 10 piece boxes
H14
Cut
-off
H
Cut-off
V
l Application Map
l Recommended Cutting Conditions (PM/PH Chipbreaker)
Workpiece Material
Recommended Insert Grades
(Cutting Speed Vc: m/min)
f (mm/rev)
Rem
arksPM
Chipbreaker PH Chipbreaker
MEGACOAT Width W(mm)
Width W(mm)
PR1225 PR1215 2~4 2 3~4
Carbon Steel ★ 80~200
✩ 100~200
0.08~0.18 0.10~0.25 0.15~0.28
Coo
lantAlloy Steel ★
70~180✩
80~180
Stainless Steel ★ 60~150
✩ 60~150 0.06~0.12 0.05~0.12 0.08~0.15
Cast Iron - ★ 100~200 0.08~0.18 0.10~0.25 0.15~0.28
★: 1st Recommendation ✩: 2nd Recommendation
u Caution (Cut-Off)
1. Be sure to perform wet processing. Apply enough coolant to the cutting edge.2. Keep a constant rate during processing so that optimum product life will be achieved.3. Cut off as close to the chuck as possible. 4. Lower the feed rate to 1/2 to 1/3 at the near center to prevent impact caused by cutting.
l Toolholder Identi cation System (For automatic lathe)
¢ KGD (For automatic lathe)
Insert setting angle
φDmax
H3
H1
H3
H4
H2
H1
B
h
WF
A
L2
L1
1°1°
Insert setting angle
l Toolholder Dimensions
Description
Std. Cut-Off Dia. Dimension (mm) Width W
(mm)Spare Parts
Screw Wrench
R L f Dmax H1=h H2 H3 H4 B L1 L2 F A MIN. MAX.
KGD& 1010JX-1.3 N N 20 102
4.5
8 10120
18 9.5 1.0 1.3 1.3
SB-40120TR LTW-15S
1212JX-1.3 N N 24 12 10 12 19.5 11.5 KGD& 1010JX-1.5 N N 20 10
28 10
12018 9.4
1.2 1.5 1.51212JX-1.5 N N 24 12 10 12 19.5 11.4
KGD& 1212F-1.3 N N24 12 2 10 12 85 19.5
11.5 1.0 1.3 1.31212F-1.5 N N 11.4 1.2 1.5 1.5
KGD& 1010JX-2 N N 20 102
4.5
8 10120
18 9.151.7 2.0 3.0 SB-40120TR LTW-15S1212JX-2 N N 24 12
1012 19.5 11.15
1616JX-2 N N 32 16 - 16 24.5 15.15KGD& 1010JX-2.4 N N 20 10
28 10
12018 9
2.0 2.4 3.0 SB-40120TR LTW-15S1212JX-2.4 N N 24 1210
12 19.5 111616JX-2.4 N N 32 16 - 16 24.5 15
KGD& 1212JX-3 N N 24 12 210
12120
19.5 10.82.4 3.0
3.0SB-40120TR LTW-15S
1616JX-3 N N 32 16 - 16 24.5 14.8 4.0KGD& 1212F-2 N N
24 12 2 10 12 85 19.511.15 1.7 2.0
3.0 SB-40120TR LTW-15S1212F-2.4 N N 11 2.0 2.4
KGD& 1616JX-3D38 N N 38 16 -6
10 16120
29 14.82.4 3.0 4.0 SE-50125TR LTW-202012JX-3D42 N N
42 20 - 1412
3110.8
2020JX-3D42 N N 20 18.8· 4mm width Insert can be installed in KGD&1212JX-3, but is not recommended due to the toolholder's rigidity.
· Right-hand shown
N : Std. Item
Width: 1.3~4.0mm
H16
Cut
-off
H
Grooving / Cut-Off
N : Std. Item
¢ KGD (Integral Type)
L3
H2
H3
W
L1
A
F1
T
L2
h
BH
1
l Toolholder Dimensions
Wid
th (m
m)
Max
. dep
th o
f cut
(mm
)
Description
Std. Dimension (mm) Width W (mm)
Spare Parts
Clamp Bolt Wrench
R L H1=h H2 H3 B L1 L2 L3 F1 A T MIN. MAX.
2
6KGD& 1616H-2T06 N N 16 4.0
9.5
16 100 27.7 28.0 15.2
1.7
6
2.0 3.0
HH5X16
LW-4
2020K-2T06 N N 20-
20 12528.0 -
19.22525M-2T06 N N 25 25 150 24.2 HH5X25
10KGD& 1616H-2T10 N N 16 4.0 16 100 30.2 30.5 15.2
10HH5X16
2020K-2T10 N N 20-
20 12530.5 -
19.22525M-2T10 N N 25 25 150 24.2 HH5X25
17
KGD& 1616H-2T17 N N 16 4.0 16 100 31.2 31.5 15.2
17HH5X162012K-2T17 N N
20-
12 12532.5 -
11.22020K-2T17 N N 20 125 19.22525M-2T17 N N 25 25 150 24.2 HH5X25
2.4 17KGD& 2012K-2.4T17 N N
20 -12 125
32.5 -11.0
2.0 17 2.4 3.0 HH5X16 LW-42020K-2.4T17 N N 20 125 19.0
3
6KGD& 1616H-3T06 N N 16 4.0 16 100 27.7 28.0 14.8
2.4
6
3.0 4.0
HH5X16
LW-4
2020K-3T06 N N 20-
20 12528.0 -
18.8 2525M-3T06 N N 25 25 150 23.8 HH5X25
10KGD& 1616H-3T10 N N 16 4.0 16 100 30.2 30.5 14.8
10HH5X16
2020K-3T10 N N 20-
20 12530.5 -
18.8 2525M-3T10 N N 25 25 150 23.8 HH5X25
20
KGD& 1616H-3T20 N N 16 4.0 16 100 34.2 34.5 14.8
20HH5X162012K-3T20 N N
20-
12 12534.5
-10.8
2020K-3T20 N N 20 125 18.8 2525M-3T20 N N 25 25 150 35.5 23.8 HH5X25
4
10KGD& 2020K-4T10 N N 20
-
20 12530.5
-
18.3
3.4
10
4.0 5.0
HH5X16
LW-42525M-4T10 N N 25 25 150 23.3 HH5X25
20KGD& 2020K-4T20 N N 20 20 125 34.5 18.3
20HH5X16
2525M-4T20 N N 25 25 150 35.5 23.3 HH5X25
25 KGD& 2525M-4T25 N N 25 25 150 40.5 23.3 25Note) 1. Dimension T shows the distance from the Toolholder to the cutting edge. (If the dimension T is 20 mm or more, the maximum depth of groove made by the 2-edge insert will be 18 mm.) 2. Recommended tightening torque of clamp bolt for insert: 6.5N·m (Groove width 2 - 4mm)
· Right-hand shown
Recommended Cutting Conditions H14
H17
Cut
-off
H
¢ KGD-S (0° separate type)
B
T
WF1
h
L2
H3
H2
L1
H1
A
· Right-hand shown
N : Std. Item
Notes) 1. In case of normal mounting position, the toolholder body may interfere with the tool presetter. 2. The toolholder and blade descriptions are printed on the toolholder body. (Unit description is not printed.)
KGD-S: Right-hand Blade for Right-hand Toolholder, Left-hand Blade for Left-hand Toolholder. Combination of the optional toolholder (KGD..-C) and blade (KGD..T..-C) (both separately sold) can make up the corresponding assembly part. Make sure of the “ hand of toolholder” and “ hand of blade”.
3. Dimension T shows the distance from the Toolholder to the cutting edge. (If the dimension T is 20 mm or more, the maximum depth of groove made by the 2-edge insert will be 18 mm.)
4. Recommended tightening torque of clamp bolt for insert: 6.5N·m (Groove width 2 - 4mm)
l Spare Parts (Common with separate types)* The parts are included in the toolholder and unit.
CR9025/PR915 PR930/KW10 CR9025/PR915 PR930/KW10 PR1115 CR9025 PR930/KW10· Sharp Edge Spec. can reduce cutting force by 40% less than that of chamfer edge.
Series Advantage
GMM-MT Specific chipbreaker for cut-off operations requiring sharp cutting performance.Minimizes the Boss.
GMM-NB Cutting edge is flat with non-chipbreaker.Good performance for brass, etc.
GMM-TK Stable design with chipbreaker for cut-off. Large corner-R.2-edge for economical performance.
GMN-TK Same chipbreaker geometry as GMM-TK.1-edge. Wide application range.
GMN (Std.)(No Indication)
Mainly for deep grooving, but available for groove widening and turning due to projection near side cutting edge.1-edge and wide application range. Available for cut-off applications.
¢ TMR-Chipbreakerl Chipbreaker Advantages l GMM Chipbreaker MAP
(Cutting Condition: SCM415, f 30, constant spindle revolution)
l TMR-chipbreaker enables stable chip control also for high feed rates.Good chip control even when cutting speed (spindle revolution) is increased.
l Workpiece Surface RoughnessTMR-Chipbreaker provides good surface roughness on the workpiece end face at high feed rate ranges.
Chip width < grooving width
Improved chip evacuation by squeezing chips
Special Curve Wall
50
100
200
Cut
ting
Spee
d Vc
(m/m
in)
0.10 0.15 0.20Feed Rate f (mm/rev)
Application Range
0.08 0.12
2
4
0.18
6
8
Rou
ghne
ss R
z ( µ
m)
f (mm/rev)
(Vc=200m/min)
0.08 0.12
2
4
0.18
6
8
Rou
ghne
ss R
z ( µ
m)
f (mm/rev)
(Vc=200m/min)· GMM2020R-TMR-6D · GMM2020-TMR
GMM2020R-TMR-6DCompetitor’s chipbreaker A
GMM2020R-TMRCompetitor’s chipbreaker A
Depression in center of cutting edge.
H20
Cut
-off
H
Cut-Off Toolholders
H3
H1
φDmax
5°
F
KGM& 1616 A
hH
3
L2
L1
H4
H2
H1
B
W
¢ KGM (For automatic lathe)
l Right-hand shown
N : Std. Item
Width: 1.5~4.0mm
Description
Std. Cut-Off Dia. Dimension (mm) WidthW(mm)
Spare PartsScrew Wrench
R L f Dmax H1=h H2 H3 H4 B L1 L2 F A MIN. MAX.
KGM& 1010JX-1.5 N N 20 10 2 3 8 10 120 18 9.4 1.2 1.5 2.0 SE-40120TR LTW-15S1212JX-1.5 N N 25 12 4 10 12 20.5 11.4KGM& 1010JX-2 N N 20 10 2 3 8 10
12018 9.15
1.7 2.0 3.0 SE-40120TR LTW-15S1212JX-2 N N 25 12 4 10 12 19 11.151616JX-2 N N 32 16 - 9 16 24.5 15.15 SE-50125TR LTW-20
KGM& 1010JX-2.5 N N 20 10 2 3 8 10120
18 92.0 2.4 3.0 SE-40120TR LTW-15S1212JX-2.5 N N 25 12 4 10 12 20.5 11
1616JX-2.5 N N 32 16 - 9 16 25.5 15 SE-50125TR LTW-20KGM& 1616JX-3 N N 32 16 - 4 9 16 120 25.5 14.8 2.4 3.0 4.0 SE-50125TR LTW-20KGM& 1212F-1.5-85 N 25 12 2 4 10 12 85 19 11.4 1.2 1.5 2.0 SE-40120TR LTW-15SKGM& 1212F-2-85 N N 25 12 2 4 10 12 85 19 11.15 1.7 2.0 3.0 SE-40120TR LTW-15SKGM& 1212F-2.5-85 N N 25 12 2 4 10 12 85 19 11 2.0 2.4 3.0 SE-40120TR LTW-15S
l Toolholder Dimensions
L2
A
h H2
5°
WF1
T
L1
H1
H3
B¢ KGM
l Toolholder Dimensions
Width: 3.0~8.0mm
l Right-hand shown
· 4mm width Insert can be installed in KGM&1212H-3, but is not recommended due to the toolholder's rigidity. · Dimension T shows the distance from the Toolholder to the cutting edge.
Description
Std. Dimension (mm) WidthW(mm)
Spare PartsScrew Wrench
R L H1=h H2 H3 B L1 L2 F1 A T MIN. MAX.
KGM& 1212H-3 N N 12 4 6 12 10027
10.8
2.4 9
3.0 3.0 SB-5TR - LTW-20 -1616H-3 N N 16 7 16 14.8
3.0 4.0 -HH5X16
- LW-42020K-3 N N 20 - 7 20 125 18.82525M-3 N N 25 25 150 23.8 HH5X25
KGM& 2020K-4 N N 20 - 7 20 125 27 18.3 3.4 10 4.0 5.0 -HH5X16
- LW-42525M-4 N N 25 25 150 23.3 HH5X25KGM& 2020K-5 N N 20
- 720 125
2717.8
4.4 10 5.0 6.0 -HH5X16
- LW-42525M-5 N N 25 25 150 22.8HH5X253232P-5 N N 32 32 170 29.8
KGM& 2525M-8 N N 25 7.5 10.5 25 150 40 22.0 6.0 25 8.0 8.0 - HH6X25 - LW-53232P-8 N N 32 - 32 170 29.0
H21
Cut
-off
H
CERACUT Plunge&Turn
N : Std. Item
¢ KGM-T
h H2
A
W
5°
F1
T
L2
L1
H1
H3
B
l Toolholder Dimensions
· Dimension T shows the distance from the Toolholder to the cutting edge. Ref. to the Table H22 for the relationship between the Grooving Depth and the Cutting Dia. · When using GMG / GMM type (2-edge) Insert, set the groove depth under 15mm.
Width: 2.0~6.0mm
l Right-hand shown
Applications Grooving / Turning Grooving / Turning Grooving Full-R / Copying Full-R / Copying Cut Off / Deep Grooving Cut Off / Deep Grooving Cut Off / Deep Grooving Cut Off / Deep Grooving Cut Off / Deep GroovingRef. Page G32 G32 G32 G32 G33 H18 H18 H18 H18 H18
· Sharp Edge Spec. can reduce cutting force by 40% less than that of chamfer edge.
Low Feed / Lead-Angle
Fig. 1 How to attach inserts Fig. 2 How to detach inserts
¢ Set Up (TKN / TK& )
1. Tap the insert lightly with a plastic hammer to push it in to the extent that it can not be removed by hand. (Fig.1) (Pull it to the point where it does not fall out when picked up lightly with a nger)
2. Remove the insert with the supplied wrench. (Fig.2) Plastic HammerInsert’s back end does not contact the toolholder.
Releasing Wrench
H24
Cut
-off
H
Cut-Off Blades
7°
φD
150°A
H h
W
L
hH
W
150°
B
A
7°
φD
L
W
KTKBRKTKB
15°
15°
150°
hH
A
B
φD
A
hH
W
L
l Blade Dimensions
¢ KTKB-S / KTKB-SS
Fig. 1
Fig. 2 Fig. 3
u How to install toolblock and blade.
Datum Plane
Incorrect way
Correct way
Datum Plane
Datum Plane
Incorrect setting of clamp elementIncorrect setting of clamp element
Incor
rect
Edge
Heig
htE
dge
Hei
ght
If the clamp element is mounted backward, a large gap will occur between the clamp and the toolblock, and the blade may come off during cutting. Be careful when installing the clamp for safety.
Note) The corresponding alternative toolholder may be different from the conventional toolholder in insert clamping system or insert size.Make sure of their speci cations by referring to the catalog or other documents.
¢ Alternative Toolholder Reference Table for Cut-off Toolholder (KTKF / KGM)
Conventional Toolholder Alternative Toolholder
Description
Cut
-Off
Dia
.
Spare Parts
Description
Cut
-Off
Dia
.
Remarks
Ref
. Pag
eReleasing Wrench Clamp Bolt Wrench
KTKH& 0808K-1.6-125B f 10
- SE-40120TR FT-15
- - No replacement
H20
KTKH& 1010K-1.6-125B f 20 KGM& 1010JX-1.5 f 20KTKH& 1212M-1.6-150B f 25 KGM& 1212JX-1.5 f 25KTKH& 1414M-1.6-150B f 26 - - No replacementKTKH& 1010K-2-125B f 20
- SE-40120TR FT-15KGM& 1010JX-2 f 20
KTKH& 1212M-2-150B f 25 KGM& 1212JX-2 f 25KTKH& 1616M-2-150B f 32
- SE-50125TR LTW-20KGM& 1616JX-2 f 32
KTKH& 1616M-3-150B f 32 KGM& 1616JX-3 f 32
KTKHR 1010K-2-125S f 30
LTK-5 - -
KGMR 1010JX-2 f 20Processing diameter is
small.
KTKH& 1212M-2-150S f 30 KGM& 1212JX-2 f 25Processing diameter is
small.
KTKH& 1616M-2-150S f 36 KGM& 1616JX-2 f 32Processing diameter is
small.
KTKH& 1616M-3-150S f 45 KGM& 1616JX-3 f 32Processing diameter is
small.Note) The corresponding alternative toolholder may be different from the conventional toolholder in processing diameter or insert size.
Make sure their speci cations referring to the catalog or other documents.
¢ Alternative Toolholder Reference Table for Cut-off Toolholder (KTKH-B / KTKH-S)