High-performance 35° rhombic insert for stainless steel machining
The Indexable insert - VNMG...-FE RT305 is a well-conceived solution for demanding finishing operations on stainless steel materials. Due to its characteristic 35° base shape (VNMG), it offers excellent accessibility, which is particularly advantageous for profile and contour turning. Combined with the dedicated FE chipbreaker and intended for continuous cutting, this tool reliably produces fine surface finishes and supports efficient workflows in professional manufacturing.
Suitable materials

Technical data
- Shape: VNMG (35° rhombic)
- Processing: Finish
- Cutting condition: Continuous
- Workpiece Material: Stainless Steel
- Grade: RT305 (PVD-coated M20-M30 carbide grade)
- Packaging unit: 10 Pc.
Dimensions of Indexable insert - VNMG...-FE RT305
|
Item Nr. |
r |
L |
I.C |
S |
d |
| VNMG 160404-FE RT305 |
1661501 |
0,4 |
16,6 |
9,525 |
4,76 |
3,81 |
| VNMG 160408-FE RT305 |
1661502 |
0,8 |
16,6 |
9,525 |
4,76 |
3,81 |
Cutting data
|
Stainless Steel |
|
Vc (m/min) |
fn (mm/U) |
ap (mm) |
| VNMG 160404-FE RT305 |
80-160 |
0,07-0,25 |
0,2-1,5 |
| VNMG 160408-FE RT305 |
80-160 |
0,07-0,25 |
0,2-1,5
|
Applications
This turning insert is primarily designed for the precise finishing of stainless steels under continuous cutting conditions. Thanks to the slim cutting corner, it is a practical choice for contour turning, profile turning, and intricate workpiece geometries that cannot be accessed with wider inserts. It is aimed at professional users in both series and small-batch production who require dependable results during fine machining.
Special features
The core of the Indexable insert - VNMG...-FE RT305 is the PVD-coated M20-M30 grade, which is specifically tailored to the characteristics of stainless steel. This modern coating technology aids in reducing cutting edge wear and maintains contour accuracy throughout the machining cycle. Furthermore, the fine FE geometry promotes controlled chip evacuation even at low depths of cut and feed rates, thereby facilitating a stable turning process.