WNMG080404-MM 2025 Turning Insert | High-Performance Steel Machining | 6-Edge Wear-Resistant Insert
Product Overview
The WNMG080404-MM 2025 is a high-performance turning insert featuring a double-sided triangular geometry that provides six cutting edges for exceptional cost efficiency. The 2025 grade is specifically optimized for steel turning under medium cutting conditions, delivering balanced wear resistance, strong edge toughness, and reliable tool life.
The MM chipbreaker ensures smooth chip control, reduced cutting forces, and stable machining performance, making this insert ideal for medium to semi-finishing operations in automotive, machinery, and general engineering applications.
Key Features
Grade 2025 — Balanced Wear Resistance & Toughness
- Optimized for steel (P-class materials)
- Works in continuous and light interrupted cuts
- Extended tool life with consistent performance
- Ideal for medium speed and medium depth of cut
WNMG Geometry — Six Cutting Edges for Higher Value
- Double-sided design offering 6 usable edges
- Strong triangular shape ensures rigidity
- Reduces cost per cutting edge and increases productivity
MM Chipbreaker — Stable Chip Control
- Suitable for medium machining conditions
- Excellent chip evacuation and reduced risk of chip entanglement
- Produces improved surface finish and consistent tolerances
- Lower cutting forces for improved tool stability
Reliable and Stable Cutting Performance
- Designed for vibration-resistant machining
- Recommended for shafts, flanges, and long-part turning
- Surface roughness achievable: Ra 1.6–3.2 μm
Material Suitability
| Material |
Performance Rating |
| Steel (P-class) |
★★★★★ Excellent |
| Stainless steel (M-class) |
★★★☆☆ Stable |
| Alloy steel |
★★★★☆ Very good |
| Carbon / low-alloy steel |
★★★★★ Ideal |
Typical Applications
- External turning and boring operations
- Semi-finishing and finishing operations
- Automotive part machining
- General engineering components
- Medium feed and medium cutting speed conditions
Technical Specifications
- Model: WNMG080404-MM
- Grade: 2025
- Cutting Edges: 6
- Chipbreaker: MM (Medium)
- Insert Shape: 80° triangular
- ISO Type: WNMG08
- Corner Radius: 0.4 mm
Performance Advantages
- Excellent cost-effectiveness with six cutting edges
- Stable machining and reduced insert breakage
- High compatibility with various steel types
- Improved surface finish and dimensional accuracy