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Lathe tools
ISO clamp holders for internal machining

Metal cutting tools
Metal cutting tools

CKUN boring bar steel negative DIN 8024
for longitudinal lathing with KN indexable insert
Application: Advantage:
For longitudinal turning using KN 55° indexable ƒ optimised geometry for low-performance machines
insert. ƒ positive cutting geometry of the indexable insert
Execution: ensures low cutting forces
ƒ precision-manufactured steel boring bar, K type, ƒ wide range of delivery: suitable for both finishing
and roughing
93° pitch angle, 55° tip angle, 0° clearance angle

d
ØDmin.
h1
f
h
l2
l1
Tool design Right Left
ISO name D min. (mm) d (mm) l2 (mm) l1 (mm) h (mm) f (mm) Suitable for 17851... 17851...
indexable ID no. ID no.
inserts
S 25 T CKUN 37 25 50 300 23 20.5 KNUX 1604.. 010 O. R. 011 O. R.
R/L 16
S 32 U CKUN 39 32 54 350 30 22 KNUX 1604.. 015 O. R. 016 O. R.
R/L 16
S 40 V CKUN 48 40 60 400 37 27 KNUX 1604.. 020 O. R. 021 O. R.
R/L 16
Prod. group 107

MVUN boring bar steel negative
for copy and longitudinal lathing with VN indexable insert DIN 8024
Application: Advantage:
For copy and longitudinal turning using VN 35° ƒ very slim geometry, optimised for contour turning
indexable insert. work
Execution: ƒ negative body geometry ensures good stability and
absorption of force for large cutting depths
ƒ precision-manufactured steel boring bar, V type, ƒ wide range of delivery: suitable for both finishing
93° pitch angle, 35° tip angle, 0° clearance angle and roughing

d
30°
ØDmin.
h1
f
h
l2
l1
Tool design Right Left
ISO name D min. (mm) d (mm) l2 (mm) l1 (mm) h (mm) f (mm) Suitable for 17851... 17851...
indexable ID no. ID no.
inserts
S 25 T MVUN 31 25 40 300 23 17 VN.. 1604.. 110 O. R. 111 O. R.
R/L 16
S 32 U MVUN 39 32 50 350 30 22 VN.. 1604.. 115 O. R. 116 (O. R.)
R/L 16
S 40 V MVUN 48 40 60 400 37 27 VN.. 1604.. 120 O. R. 121 O. R.
R/L 16
Unit price, €
Prod. group 107

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