High-performance machining with the CCMT-MF RT255M turning insert
The CCMT-MF RT255M indexable insert is a smart choice for users seeking reliable and dimensionally accurate finishing results on stainless steel. With its positive geometry and specialized M20-M30 carbide substrate, this cutting tool ensures excellent performance in finishing applications, supporting efficient and stable workflows.
Suitable materials

Technical data
- Shape: CCMT
- Processing: Finishing
- Workpiece material: Stainless Steel
- Grade: RT255M (PVD coated M20-M30 carbide)
- Cutting conditions: Continuous and light interrupted
- Packaging unit: 10 Pc.
Dimensions of CCMT-MF RT255M
|
Item Nr. |
r |
L |
I.C. |
S |
d |
| CCMT 060202-MF RT255M |
1777311 |
0,2 |
6,4 |
6,35 |
2,38 |
2,8 |
| CCMT 060204-MF RT255M |
1777312 |
0,4 |
6,4 |
6,35 |
2,38 |
2,8 |
| CCMT 060208-MF RT255M |
1777313 |
0,8 |
6,4 |
6,35 |
2,38 |
2,8 |
| CCMT 09T302-MF RT255M |
1777314 |
0,2 |
9,7 |
9,525 |
3,97 |
4,4 |
| CCMT 09T304-MF RT255M |
1777315 |
0,4 |
9,7 |
9,525 |
3,97 |
4,4 |
| CCMT 09T308-MF RT255M |
1777316 |
0,8 |
9,7 |
9,525 |
3,97 |
4,4 |
Cutting data
|
Stainless Steel |
|
Vc (m/min) |
f (mm/rev.) |
ap (mm) |
| CCMT 060202-MF RT255M |
100-200 |
0,04-0,1 |
0,05-1,5 |
| CCMT 060204-MF RT255M |
100-200 |
0,04-0,15 |
0,08-2 |
| CCMT 060208-MF RT255M |
100-200 |
0,05-0,2 |
0,1-2 |
| CCMT 09T302-MF RT255M |
100-200 |
0,04-0,15 |
0,08-2 |
| CCMT 09T304-MF RT255M |
100-200 |
0,05-0,25 |
0,1-2 |
| CCMT 09T308-MF RT255M |
100-200 |
0,08-0,25 |
0,15-2 |
Applications
This turning insert demonstrates its full potential in stainless steel machining, particularly for industries such as plant engineering, food technology, and medical manufacturing. It is engineered specifically for finishing operations where tight tolerances and excellent surface finishes are strictly required. The availability of multiple corner radii offers the necessary versatility for profile turning, facing, and longitudinal turning of complex workpiece contours.
Special features
Thanks to the advanced PVD coating, the RT255M grade provides high thermal stability, effectively reducing the typical edge wear encountered during stainless steel machining. The positive cut of the CCMT geometry, paired with the MF chipbreaker, ensures low cutting forces and reliable chip control, even under light interrupted cutting conditions. This creates a solid foundation for flexible and cost-effective solutions in modern manufacturing setups.