Reliable finishing with VBMT 1604..-MF RT255M
The indexable insert VBMT 1604..-MF in grade RT255M is a cutting tool precisely developed for finishing stainless steel. Its PVD-coated M20-M30 carbide grade offers excellent wear resistance and promotes stable tool life when generating fine surfaces. The geometry ensures reliable chip control during both continuous and light interrupted turning operations. As a result, this tool supports efficient and consistent workflows in professional turning processes.
Suitable materials

Technical data
- Shape: VBMT
- Processing: Finish
- Cutting conditions: Continuous and light interrupted
- Workpiece material: Stainless steel
- Grade: RT255M (PVD-coated M20-M30 carbide)
- Packaging unit: 10 pieces
Dimensions of VBMT 1604..-MF RT255M
|
Item Nr. |
r |
L |
I.C. |
S |
d |
| VBMT 160402-MF RT255M |
1771441 |
0,2 |
16,5 |
9,525 |
4,76 |
4,4 |
| VBMT 160404-MF RT255M |
1771442 |
0,4 |
16,5 |
9,525 |
4,76 |
4,4 |
| VBMT 160408-MF RT255M |
1771443 |
0,8 |
16,5 |
9,525 |
4,76 |
4,4 |
Cutting data
|
Stainless Steel |
|
Vc (m/min) |
f (mm/rev.) |
ap (mm) |
| VBMT 160402-MF RT255M |
100-200 |
0,04-0,15 |
0,1-2 |
| VBMT 160404-MF RT255M |
100-200 |
0,05-0,2 |
0,2-2 |
| VBMT 160408-MF RT255M |
100-200 |
0,07-0,27 |
0,3-2 |
Applications
This insert is excellently suited for the precise machining of stainless steel components in industrial manufacturing. It demonstrates its strengths particularly in finishing tasks characterized by continuous or light interrupted cuts. With this design, it is a well-thought-out solution for turning shops and mechanical engineering, where high dimensional accuracy and flawless surface finish are required.
Special features
Thanks to the wear-resistant PVD coating of the M20-M30 carbide grade, the insert creates favorable conditions for consistent work results. The MF design also reduces cutting pressure, which allows the tool to optimally support the machining process even during demanding contouring or longitudinal turning operations, while protecting the machine.