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The Best Tooling for Back Turning
Inserts
for Back Turning in
steel and other
hard and long chipped materials
| Inserts |
Max |
B |
C |
R |
B |
Cutting |
Stock |
Price |
| A |
rake° |
8M |
C8 |
F8 |
group |
| K11ER/L B12-2-0 |
2 |
1 |
0,4 |
0 |
15 |
12 |
r |
a |
r |
A8 |
| K11ER/L B12-3-0 |
3,5 |
1,5 |
0,6 |
0 |
15 |
12 |
r |
a |
r |
A8 |
| K15ER/L B12-2-0 |
2,5 |
1,3 |
0,5 |
0 |
15 |
12 |
r |
a |
r |
A8 |
| K15ER/L B12-4-0 |
4 |
1,9 |
0,7 |
0 |
15 |
12 |
r |
a |
r |
A8 |
| K15ER/L B12-4-05 |
4 |
1,9 |
0,7 |
0,05 |
15 |
12 |
r |
a |
r |
A9 |
| K15ER/L B12-4-1 |
4 |
1,9 |
0,7 |
0,1 |
15 |
12 |
r |
a |
r |
A9 |
| K15ER/L
BP12-4-1 |
4 |
1,9 |
0,7 |
0,1 |
15 |
12+14 |
r |
r |
r |
A9 |
| K15ER/L B12-4-2 |
4 |
1,9 |
0,7 |
0,2 |
15 |
12 |
r |
a |
r |
A9 |
| K15ER BT12-4-2 |
4 |
1,9 |
0,7 |
0,2 |
15 |
12 |
r |
r |
r |
A9 |
| K15ER/L BC12-1-0 |
1,5 |
1,9 |
0,5 |
0 |
45 |
12 |
b |
a |
r |
A8 |
| K20ER B12-7-0 |
7 |
3,2 |
1,3 |
0 |
15 |
12 |
r |
r |
r |
A28 |
| K20ER B12-7-2 |
7 |
3,2 |
1,3 |
0,2 |
15 |
12 |
r |
r |
r |
A29 |
| K20ER BT12-7-2 |
7 |
3,2 |
1,3 |
0,2 |
15 |
12 |
r |
r |
r |
A29 |
Right
hand inserts shown. Left hand should be coded K15EL. |

Tool holders for back
turning
WPK
WSK
ZSK |
Advantages with the B-style Back Turning Inserts
- Low radial forces
- Gives better roundness
- Keeps the desired size longer
- Chip is curled before it hits the already finished shoulder
- Gives good chip-control by curling the chip away from the
surface
|
- Positive cutting rake improves production and tool-life
- Only a narrow parting off insert is required in order to clean
up the non finished cylindrical diameter
- The final diameter is produced only 1 mm from the side of the
insert and tool holder, or away from the guide bushing, resulting in
good stability even when small diameters are produced
|
Back Turning Insert Guide
| Style B |
These back turning inserts are for general use in back
turning applications in stainless steel, titanium, nimonic,
hastaloy, high temperature alloys, alloyed steel and other hard
and long chipped materials where good chip control is needed. |
| Style BC |
These back turning inserts are used when higher feed rate is
wanted with cutting depths up to 1,5mm. Typical applications are
shafts with long parts turned down to smaller diameters. |
| Style BP |
These back turning inserts are used when machining in sticky materials when there is a chance of an
built up edge that can spoil the surface finish or reduce
tool-life. |
| Style BT |
These back turning inserts have a corner treatment on the leading corner
that improves the tool-life in harder materials. Try it when the
wear on the B-style insert comes fast on this corner. |
| Style C |
These back turning inserts are used when there is an
undercut required. |
| Style E |
These back turning inserts are used for fine turning, using
high rev and low feed rate. This insert will give the best
possible surface finish. |
|
Inserts for Back
Turning when there is an undercut requested
|
Inserts |
A |
Max |
|
|
|
Cutting |
|
|
|
Price |
| B |
C |
R |
V |
rake° |
8M |
C8 |
F8 |
group |
| K11ER C0-1-0 |
1,3 |
1 |
0,2 |
0 |
30 only |
0 |
b |
b |
b |
A6 |
| K15ER/L C0-3-0 |
3 |
1,9 |
0,2 |
0 |
20 |
0 |
b |
a |
r |
A7 |
Right
hand inserts shown. Left hand should be coded K15EL.
|
 |
Inserts for an Extra Finishing Cut; Back Turning
|
Inserts |
Max |
Max |
|
|
|
Cutting |
|
|
|
Price |
| cut |
C |
t |
R |
V |
rake° |
8M |
C8 |
F8 |
group |
| K15ER E16-0-05 |
0,08 |
0,15 |
0,6 |
0,05 |
30 |
16 |
r |
r |
r |
A8 |
Please note: Fine turning
insert. Maximum depth of cut in one pass is 0,08mm.
Inserts for an Extra Finishing Cut; Back Turning out
from guide bushing
|
Inserts |
Max |
Max |
|
|
|
Cutting |
|
|
|
Price |
| cut |
C |
t |
R |
V |
rake° |
8M |
C8 |
F8 |
group |
| K15EL E16-0-05 |
0,08 |
0,15 |
0,1 |
0,05 |
30 |
16 |
l |
l |
l |
A8 |
Please note: Fine turning
insert. Maximum depth of cut in one pass is 0,08mm.
Left hand insert for right hand turning shown. Right hand not available.
|
 |
More Insert Information: Grades of Carbide
Insert Geometry's
Type
K
|
|
Tool holder for Grooving, Threading, Parting Off and Back
Turning
|
|
Stock status
a = Stock standard in ER and EL
b = Against inquiry
r = Stock standard in ER only
l = Stock standard in EL only |
| |
| Tool holder |
B |
H |
L |
f |
Insert |
Pin + |
Screw- |
Bit |
Stock |
Price |
| Nut |
driver |
group |
| WPK11ER/L 88K-2P |
8 |
8 |
125 |
8 |
K11ER/L |
Pin 8 |
WSD2* |
K2 |
a |
A62 |
| WPK11ER/L 1010K-2P |
10 |
10 |
125 |
10 |
K11ER/L |
Pin 8 |
WSD2* |
K2 |
a |
A62 |
| WPK15ER/L 1010K-2P |
10 |
10 |
125 |
10 |
K15ER/L |
Pin 12 |
WSD2* |
K3 |
a |
A62 |
| WPK15ER 1212F-2P |
12 |
12 |
85 |
12 |
K15ER |
Pin 12 |
WSD2* |
K3 |
r |
A61 |
| WPK15ER/L 1212K-2P |
12 |
12 |
125 |
12 |
K15ER/L |
Pin12 |
WSD2* |
K3 |
a |
A62 |
| WPK15ER/L 1205K-2P |
12 |
1/2” |
125 |
12 |
K15ER/L |
Pin 12 |
WSD2* |
K3 |
r |
A62 |
| WPK15ER/L 1616K-2P |
16 |
16 |
125 |
16 |
K15ER/L |
Pin 12 |
WSD2* |
K3 |
a |
A63 |
| WPK20ER 1212K-2P |
12 |
12 |
125 |
12 |
K20ER |
Pin 16 |
WSD2* |
K4 |
r |
A62 |
| WPK20ER 1205K-2P |
12 |
1/2” |
125 |
12 |
K20ER |
Pin 16 |
WSD2* |
K4 |
r |
A62 |
| WPK20ER 1616K-2P |
16 |
16 |
125 |
16 |
K20ER |
Pin 16 |
WSD2* |
K4 |
r |
A63 |
| WPK20ER 2020K-2P |
20 |
20 |
125 |
20 |
K20ER |
Pin 16 |
WSD2* |
K4 |
r |
A64 |
Right hand tool holder shown. Left hand
should be coded WPK15EL. * Ordered separately |
| |
|
Tool holder |
B |
H |
L |
f |
Insert |
Screw |
Key |
Stock |
Price |
| group |
| WSK11ER/L 88K-2P |
8 |
8 |
125 |
8 |
K11ER/L |
M2,5x6 |
J2 |
a |
A52 |
| WSK15ER/L 1010K-2P |
10 |
10 |
125 |
10 |
K15ER/L |
M3x7 |
J3 |
a |
A52 |
| WSK15ER/L 1212K-2P |
12 |
12 |
125 |
12 |
K15ER/L |
M3x7 |
J3 |
a |
A52 |
| WSK15ER/L 1205K-2P |
12 |
1/2” |
125 |
12 |
K15ER/L |
M3x7 |
J3 |
a |
A52 |
| WSK15ER/L 1616K-2P |
16 |
16 |
125 |
16 |
K15ER/L |
M3x7 |
J3 |
a |
A53 |
| WSK20ER 1212K-2P |
12 |
12 |
125 |
12 |
K20ER |
M4x9 |
J4 |
r |
A52 |
| WSK20ER 1205K-2P |
12 |
1/2” |
125 |
12 |
K20ER |
M4x9 |
J4 |
r |
A52 |
| WSK20ER 1616K-2P |
16 |
16 |
125 |
16 |
K20ER |
M4x9 |
J4 |
r |
A53 |
| WSK20ER 2020K-2P |
20 |
20 |
125 |
20 |
K20ER |
M4x9 |
J4 |
r |
A54 |
Right hand tool holder shown. Left hand
should be coded WSK15EL. |
| |
|
Tool holder |
D |
A |
L |
I |
Insert |
Screw |
Key |
Stock |
Price |
| group |
| DSK15ER 0016M-2P |
16 |
14 |
150 |
8 |
K15ER |
M3x7 |
J3 |
r |
A76 |
| DSK15ER 0020M-2P |
20 |
14 |
150 |
5 |
K15ER |
M3x7 |
J3 |
b |
A77 |
Only available in right hand as shown. |
| |
|
Tool holder |
B |
H |
L |
W |
Insert |
Screw |
Key |
Stock |
Price |
| group |
| ZSK15ER 1212K-2P |
12 |
12 |
125 |
20 |
K15ER |
M3x7 |
J3 |
r |
A72 |
| ZSK15ER 1616K-2P |
16 |
16 |
125 |
24 |
K15ER |
M3x7 |
J3 |
r |
A73 |
Only available in right hand as
shown. |
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