Mitsubishi TNMG160404L-ES US735 | Left-Hand Stainless Finish Insert
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TNMG160404L-ES US735
Mitsubishi Materials | The Specialist for Left-Hand Stainless Finishing
The Mitsubishi TNMG160404L-ES US735 is a high-performance Left-Hand (L) indexable turning insert designed for high-precision finishing. Engineered with the legendary US735 toughness grade, it is the primary solution for stainless steel machining where vibration and work-hardening are common issues. The ES chipbreaker is optimized for light depths of cut, ensuring perfect chip control and a superior surface finish on austenitic alloys.
Left-Hand Geometry | Fine Finishing | High Impact Resistance
Technical Code Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.4mm Radius
Left-Hand
Finish Breaker
Standard Comparison
| Spec Category | ISO (Metric) | ANSI (Inch) Equivalent |
|---|---|---|
| Model ID | TNMG160404L-ES | TNMG 331L ES |
| Inscribed Circle | 9.525 mm | 0.375" (3/8") |
US735 Toughness Grade
As a premium CVD turning insert, the US735 grade is Mitsubishi's go-to for interrupted cuts. It prevents thermal cracking and is highly effective at resisting built-up edge (BUE) in gummy materials, making it a reliable long-tail precision tool.
ES Finish-Cut Breaker
The ES chipbreaker features a high rake angle specifically for fine finishing. It minimizes cutting forces and heat buildup, which is critical when machining long-tail industrial tools to tight tolerances without deformation.
Recommended Cutting Parameters
| Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Stainless Steel (304/316) | 60 - 150 m/min | 0.05 - 0.18 mm/rev | 0.2 - 1.5 mm |
COMPATIBLE TOOL HOLDERS
Ensure you use Left-Hand (L) tool holders such as MTJNL 1616 or WTJNL 1616.
Shop Left-Hand Holders →