Sandvik Coromant TNMG 16 04 08-QM 4425 Carbide Turning Insert（10pcs）
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TNMG 16 04 08-QM 4425
Premium Steel Turning Insert | T-Max® P Geometry
Product Overview
The Sandvik Coromant TNMG 16 04 08-QM 4425 is a high-performance triangular carbide insert designed for medium machining applications in steel (P-class). Part of the T-Max® P family, this insert utilizes the cutting-edge GC4425 Grade with Inveio® coating technology for unmatched wear resistance and tool life.
Metric vs Inch Reference:
| System | Designation |
|---|---|
| Metric (ISO) | TNMG 16 04 08-QM |
| Inch (ANSI) | TNMG 332-QM |
Technical Details
- Grade: 4425 (Advanced Inveio® Technology for Steel)
- Chipbreaker (Geometry): QM (Optimized for Medium Machining)
- Shape: Triangular (60-degree)
- Coating: Ti(C,N) + Al2O3 + TiN
- Compatible Tool Holders: View compatible TNMG 1604 Tool Holders
Grade & Geometry Deep Dive
Grade 4425: Specifically engineered for steel turning, this grade offers superior thermal protection and crater wear resistance. It's the industry standard for stable and predictable performance in large batch production.
QM Geometry: The "QM" chipbreaker is a versatile geometry for medium-duty steel turning. It balances low cutting forces with excellent chip control, preventing "bird-nesting" even at varying depths of cut.
Recommended Cutting Parameters
| Parameter | Metric Value | Inch Value |
|---|---|---|
| Cutting Speed (vc) | 200 - 450 m/min | 655 - 1475 sfm |
| Feed Rate (fn) | 0.15 - 0.40 mm/rev | 0.006 - 0.016 in/rev |
| Depth of Cut (ap) | 0.5 - 4.0 mm | 0.020 - 0.157 in |
*Values may vary based on workpiece material hardness and machine stability.
Pro Tip: Grade Comparison
Looking for more heat resistance? Choose 4415 for continuous cuts at higher speeds. Dealing with interrupted cuts or heavy vibrations? Switch to 4425 for a perfect balance of toughness and wear resistance. For extremely unstable conditions, consider 4335.