NTK Cutting Tools

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A highly rigid holder design combined with a molded insert chipbreaker ensures stability

Rigid system supports the process of large-diameter cut-off operations that are subject to high cutting loads Chip control is achieved with the unique chipbreaker design
Features
  • Maximum cut-off diameter is ⌀42 1.653”
  • 2 sided inserts and width of 3mm .118”
  • GT chipbreaker with unique s-shaped feature ensures straightness and good chip curl
Tooling application
Swiss CNC lathe / Conventional CNC lathe
cut-off
Tool rigidity comparison

Rigidity developed to accommodate high load cut-off applications to ensure reliability and productivity.

* The highest clamping strength of any holder currently on the market (according to our research)
Cutting performance

① Straight cutting edge improves toughness
② Folds chips from both edges for tight curls
③ High rake angle for increased sharpness

Chip formation comparison
[ Cutting conditions ]
Material : S45C ⌀42  vc = 100m/min 1045  ⌀1.653”  330 SFM   WET

[ Tools used ]
Insert : DM4 GWPFM300N02-GT
Holder : CTWPR2020K-3D42
- - - Scroll the table - - -
ISO Work material Grade vc (m/min) (SFM) Cut-off width
(mm) (inch)
Maximum
cut-off diamter
f (mm/rev) (IPR)
Difficult-to-cut material
Cut off
DM4 50 – 130 160 – 430 3.0 .120 ⌀42 ⌀1.654” 0.03 – 0.2 .0012 – .008
Titanium alloy
High temp alloys
Cut off
DM4 50 – 130 160 – 430 3.0 .120 ⌀42 ⌀1.654” 0.03 – 0.2 .0012 – .008
Coolant control parts
Material :
S45C 1045 tempered steel
Cutting speed :
110 m/min 370 SFM
Feed :
0.07 mm/rev .0028 IPR
Coolant :
WET
CUT DUO EXTRA
700 pcs / corner
Competitor’s product
350 pcs / corner

CUT DUO EXTRA with its 2 cutting edges significantly reduced cost compared to the competitor’s 1 cutting edge insert.
Cut Max achieved excellent chip control and 2 times the tool life.

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For more information about this product, visit our online e-catalog, or download the catalog/product report

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