High-performance DNMG-MM RT250M for stainless steel machining
The DNMG-MM RT250M indexable turning insert provides a resilient and cost-effective solution for facing, longitudinal turning, and contour machining. With its specific MM chipbreaker and the highly wear-resistant, PVD-coated RT250M carbide grade, it ensures controlled chip removal in the medium machining range. This allows for stable processing of stainless steels during continuous and light interrupted cuts.
Suitable materials
Technical data
- Insert shape: DNMG (Negative, 55° rhombic)
- Cutting material: PVD-coated M20-M30 carbide
- Grade: RT250M
- Machining type: Medium machining
- Cutting conditions: Continuous and light interrupted
- Packaging unit: 10 pieces
Dimensions of DNMG-MM RT250M
|
Item Nr. |
r |
L |
I.C. |
S |
| DNMG 110404-MM RT250M |
1661611 |
0,4 |
11 |
9,525 |
4,76 |
| DNMG 110408-MM RT250M |
1661612 |
0,8 |
11 |
9,525 |
4,76 |
| DNMG 150604-MM RT250M |
1661621 |
0,4 |
15 |
12,7 |
6,35 |
| DNMG 150608-MM RT250M |
1661622 |
0,8 |
15 |
12,7 |
6,35 |
Cutting data
|
Stainless Steel |
|
Vc (m/min) |
fn (mm/U) |
ap (mm) |
| DNMG 110404-MM RT250M |
60-160 |
0,3-0,55 |
2-6 |
| DNMG 110408-MM RT250M |
60-160 |
0,3-0,55 |
2-6 |
| DNMG 150604-MM RT250M |
60-160 |
0,3-0,55 |
2-6 |
| DNMG 150608-MM RT250M |
60-160 |
0,3-0,55 |
2-6 |
Applications
This insert is explicitly designed for the requirements of machining stainless steel. It proves its worth in standard operations like facing and turning, as well as in profile or contour cutting. As a result, it is a versatile choice for series production and flexible use in modern turning environments, particularly when medium depths of cut and feed rates are needed.
Special features
The PVD coating of the RT250M grade enhances the insert's lifespan, while the negative basic shape of the DNMG design provides high tool stability during metal removal. The specifically designed MM chipbreaker optimizes chip breaking for medium machining operations, making a significant contribution to smooth and efficient production workflows.