High-performance turning insert for precise finishing of stainless steel
The DNMG...-FE indexable insert in the RT305 grade is a specialized tooling solution for operators requiring high surface quality when machining stainless steel. Carefully tuned for finishing operations in continuous cuts, this model establishes excellent conditions for efficient shaping. The RT305 cutting material employs a latest-generation M20-M30 PVD coating, offering strong resistance against process-related wear and thereby promoting consistent performance in turning production.
Suitable materials

Technical data
- Insert shape: DNMG
- Operation: Finishing
- Cutting conditions: Continuous
- Application: Stainless steel
- Grade: RT305 (M20-M30 PVD grade for stainless steel)
- Packaging unit: 10 pieces
Dimensions of DNMG...-FE RT305
|
Item Nr. |
r |
L |
I.C |
S |
d |
| DNMG 110404-FE RT305 |
1661144 |
0,4 |
11,6 |
9,525 |
4,76 |
3,81 |
| DNMG 110408-FE RT305 |
1661145 |
0,8 |
11,6 |
9,525 |
4,76 |
3,81 |
| DNMG 150604-FE RT305 |
1661141 |
0,4 |
15,5 |
12,7 |
6,35 |
5,16 |
| DNMG 150608-FE RT305 |
1661142 |
0,8 |
15,5 |
12,7 |
6,35 |
5,16 |
| DNMG 150612-FE RT305 |
1661143 |
1,2 |
15,5 |
12,7 |
6,35 |
5,16 |
Cutting data
|
Stainless Steel |
|
Vc (m/min) |
fn (mm/U) |
ap (mm) |
| DNMG 110404-FE RT305 |
120-240 |
0,05-0,2 |
0,2 -1,5 |
| DNMG 110408-FE RT305 |
120-240 |
0,1-0,4 |
0,2 -1,5 |
| DNMG 150604-FE RT305 |
120-240 |
0,05-0,3 |
0,2 -1,5 |
| DNMG 150608-FE RT305 |
120-240 |
0,1-0,4 |
0,2 -1,5 |
| DNMG 150612-FE RT305 |
120-240 |
0,05-0,3 |
0,2 -1,5 |
Applications
Thanks to its dedicated FE geometry, this turning insert is highly suitable for fine contour and longitudinal turning of stainless steels. It is the proper choice for continuous cutting paths without interruptions, where precise chip evacuation and strict dimensional accuracy are crucial. Typical fields of application include mechanical engineering, medical technology, and general parts manufacturing, where demanding materials must be finished with high reliability.
Special features
A major advantage of this insert lies in the balanced combination of toughness and wear resistance, achieved by the modern PVD coating of the M20-M30 grade. The targeted design for continuous cuts helps to minimize unnecessary vibrations, thus promoting a clean surface finish. Supplied in a practical 10-piece packaging unit, it ensures you are always well-equipped during ongoing production.