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NTK QM3

Carbon steel / Alloy steel machining ｜ Carbide grade for Swiss CNC lathes

Amazing wear resistance, fracture resistance for wide speed range. Stable machining in demanding applications.
Long tool life and stable machining of carbon steel (like S45C) and alloy steel

      Excellent toughness and stability

QM3 comparison chart

Features
  • Superior fracture resistance due to the tough base material and a special TiCN coating
  • Resists wear even in low speed range
  • Stable performance through interruptions
Tooling application

For Carbon steel and Alloy steel
Front turning / Back turning / Grooving / ID boring / Threading / Cut off

Shaft Cut-off operation
Material :
SCM435
Cutting speed :
80 m/min
Feed :
0.05 mm/rev
Coolant :
WET
QM3
6,000 pcs / corner
Competitor’s PVD coated
3,000 pcs / corner

QM3 achieved twice the tool life compared to the competitor while maintaining good part surface quality.

Flange machining
Material :
S50C
Cutting speed :
156 m/min
Feed :
0.33 mm/rev
DOC :
1.5 mm
Coolant :
WET
QM3
120 pcs / corner
Competitor’s CVD coated carbide
45pcs / corner

Competitor’s insert had a problem with varying tool life.
QM3 with Z5 chipbreaker achieved 2.5 times longer tool life.