NTK Cutting Tools

NTK450

For continuous machining | NTK CeramiX

The ultimate ceramic grade for finishing hardened materials -” NTK CeramiX “

Wins against CBN with the combination of performance and price

Matches the excellent wear resistant characteristics of CBN Significant cost savings compared to CBN
Features
  • NTK CeramiX is an advanced ceramic material achieving the performance to compete with CBN
  • New TiAlN coating offers excellent wear resistance for hard turning
  • In continuous machining materials with a hardness of 55 to 65 HRC, NTK450 matches the performance of CBN with the benefit of cost reductions
Tooling application

Hardened materialContinuous machining HRC55-65

Price and Performance comparison
Wear comparison vs. CBN
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Grade Material Operation type Machining Cutting speed (m/min) Cutting speed (SFM) Feed (mm/rev) Feed (IPR) DOC (mm) DOC (Inch) DRY WET
NTK450 Hardened material
(HRC55-65)
Turning Finishing 100 – 200 330 – 660 0.08 – 0.15 .003 – .006 0.1 – 0.5 .004 – .020
The same conditions as current CBN
Industrial robot component
Material :
SCM415 4130 (HRC58-62)
part diameter : φ60 φ2.36 inches
Cutting speed :
200 m/min 660 SFM
Feed :
0.05 mm/rev .002 IPR
DOC :
0.1 mm .004 Inch
Coolant :
WET
NTK450 TNGA160404 TNGA331
30 pcs / corner
Competitor’s coated CBN
15pcs / corner

NTK450 achieved double the tool life vs. the competitor’s coated CBN insert.
Switching to CeramiX will result in a 70% reduction in tool cost per year.

Gear
Material :
SCM420H 4120H (HRC52-55)
part diameter : φ150 φ6 inches
Cutting speed :
220 m/min 730 SFM
Feed :
0.15 mm/rev .006 IPR
DOC :
0.1 mm .004 Inch
Coolant :
WET
NTK450 CNGA120404 CNGA431
200 pcs / corner
Competitor’s coated CBN
200 pcs / corner

NTK450 matched the tool life of the competitor’s coated CBN.
The result is a 50% reduction in insert costs for the customer.

Holder part
Material :
SKD11 D2 (HRC58-62)
part diameter : φ60 φ2.36 inches
Cutting speed :
300 m/min 1,000 SFM
Feed :
0.02 mm/rev .0008 IPR
DOC :
0.1 mm .004 Inch
Coolant :
WET
NTK450 VNGA160404 VNGA331
20 pcs / corner
Competitor’s CBN
20 pcs / corner

NTK450 matched the tool life of the competitor’s coated CBN.
The result is a 30% reduction in insert costs with NTK450.

Industrial part
Material :
S55C 1055 (HRC58-60)
part diameter : φ250 φ10 inches
Cutting speed :
250 m/min 830 SFM
Feed :
0.1 mm/rev .004 IPR
DOC :
0.05-0.1 mm .002 – .004 Inch
Coolant :
WET
NTK450 TNGA160404
16pcs / corner
Competitor’s coated CBN
20 pcs / corner

NTK450 achieved 80% of the tool life compared to competitor’s coated CBN with the same cutting conditions.
Replacing the CBN with NTK450 will result in a 10% tool cost reduction for the customer.

Related News
July 1, 2025
NTK Cutting Tools is proud to announce the launch of its new CBN grades series, ...

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

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