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General purpose grade machining various workpiece materials

Balance of toughness, wear resistance and sharp cutting edge
Features

• General‑purpose grade emphasizing durability and versatility
• Thin multilayer TiN–TiCN–TiN PVD coating with exceptional surface smoothness
• Suppresses adhesion and maintains sharp cutting edges
• Provides stable tool life across a broad range of materials and cutting conditions

Tooling application
  • Front turning
  • Back turning
  • Grooving
  • Parting / Cut off
  • ID boring
  • Socket machining
  • Milling
Grade map
↑High




SPEED
DT4 DM4
650 TM4
ZM3 VM1 QM3
FEED

High→

↑High



SPEED
PD1/2 TM4
ZM3
KM1
FEED

High→

↑High





SPEED
DT4 DM4
ST4 650 TM4
ZM3 VM1 QM3
FEED

High→

TM4 comparison chart
- - - Scroll the table - - -
ISOMaterialChipbreakerGradevc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)
Carbon steel
Alloy steel
AMXTM4 40 – 90 130 – 300 0.05 – 0.3 .002 – .012 0.03 – 0.1 .001 – .004
TMV 0.5 – 2.0 .020 – .080 0.05 – 0.2 .002 – .008
YL 0.3 – 2.5 .012 – .100 0.02 – 0.15 .001 – .006
Difficult-to-cut
Free-cutting stainless steel
AMX 40 – 90 130 – 300 0.05 – 0.3 .002 – .012 0.03 – 0.1 .001 – .004
TMV 0.5 – 2.0 .020 – .080 0.05 – 0.2 .002 – .008
YL 0.3 – 2.5 .012 – .100 0.02 – 0.15 .001 – .006
Non-ferrous metalAMX 40 – 180 130 – 600 0.05 – 0.3 .002 – .012 0.03 – 0.1 .001 – .004
TMV 0.5 – 2.0 .020 – .080 0.05 – 0.2 .002 – .008
YL 0.3 – 2.5 .012 – .100 0.02 – 0.15 .001 – .006
Automotive component
Workpiece: SUS304 304SS
Cutting speed :
80 m/min 270 SFM
Feed :
0.02 mm/rev .0008 IPR
DOC :
1.2 mm .047 inch
Coolant :
WET
TM4
950 pcs / corner
Competitor’s PVD coated carbide
500 pcs / corner

TM4 achieved 1.9 times longer tool life compared to the competitor’s insert with stability due to it’s excellent toughness.

Automotive component
Workpiece: S20C
Cutting speed :
80 m/min 270 SFM
Feed :
0.18 mm/rev .007 IPR
DOC :
0.10 mm .004 inch
Coolant :
WET
TM4
1,000 pcs / corner
Competitor’s PVD coated carbide
500 pcs / corner
TM4 achieved twice the tool life of the competition during ID boring a 10mm .393” diameter hole.
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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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