Tungaloy YNMG160404-ZF T9125 Carbide Turning Insert – PVD Coated for Steel Semi-Finishing
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Tungaloy YNMG160404-ZF T9125 Carbide Turning Insert – High-Precision Steel Finishing & Profiling
Engineered for high-quality surface finish. The T9125 CVD grade provides superior wear resistance for steel turning, while the ZF chipbreaker excels in light cutting and finishing operations.
Product Overview
"Which insert is best for achieving high surface quality during CNC profiling and light finishing of steel parts?"
The Tungaloy YNMG160404-ZF T9125 is a specialized 25° parallelogram-shaped insert (YNMG) designed specifically for finishing and profiling. The ZF chipbreaker is Tungaloy's answer to precision finishing, featuring a sharp cutting edge and a optimized rake angle that effectively breaks chips at low depths of cut (ap) and low feed rates (fn). This prevents the "birdnesting" common in ductile steel finishing.
Powered by the T9125 CVD Grade, this insert utilizes Premium Tec technology—a specialized coating that significantly reduces crater wear and plastic deformation under high cutting speeds. It is the definitive choice for ISO P25 applications where surface integrity and tool life consistency are paramount.
Model Code Decoder – YNMG160404-ZF
25° Parallelogram
0° (Negative)
±0.08–0.18mm
Hole + Chip Groove
16.0 mm
4.76 mm
0.4 mm
Finishing Class
Key Features
Technical Specifications
Dimensions: Metric & Imperial
| Parameter | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| ISO Model | YNMG160404-ZF | YNMG 331-ZF |
| Cutting Edge Length | 16.0 mm | 0.630 in |
| Thickness (S) | 4.76 mm | 0.187 in |
| Corner Radius (r) | 0.4 mm | 0.016 in |
| Grade | T9125 | T9125 |
Recommended Cutting Parameters
| Material | Vc (m/min) | fn (mm/rev) | ap (mm) |
|---|---|---|---|
| Carbon Steel (P) | 150 - 300 | 0.05 - 0.20 | 0.2 - 1.5 |
| Alloy Steel (P) | 120 - 250 | 0.05 - 0.15 | 0.2 - 1.2 |
| Ductile Iron (K) | 150 - 280 | 0.08 - 0.25 | 0.3 - 2.0 |
🔧 Compatible Tool Holders (YNMG16)
Product Applications
Tungaloy Grade Intelligence
| Grade | Coating | ISO Range | Toughness |
|---|---|---|---|
| T9115 | CVD | P10-P20 | ★★☆☆☆ |
| T9125 ✓ | CVD | P20-P35 | ★★★☆☆ |
| AH725 | PVD | P15-P30 / M | ★★★★☆ |
Why Choose Us
Machinist Reviews
"Perfect for the final pass on 4140 shafts. The ZF breaker keeps the chips short and the finish is mirror-like."
"Sehr gute Standzeit bei hohen Schnittgeschwindigkeiten. T9125 ist unser Standard für Stahlbearbeitung."
"プロファイリングに最適。ZFチップブレーカーの切り屑処理能力は非常に高いです。"
Frequently Asked Questions
💡 Finishing Tip: Surface Quality
To maximize tool life and surface finish with the ZF chipbreaker, ensure your feed rate (fn) does not exceed 0.5x the corner radius (0.2mm). Running at high speeds (Vc > 200 m/min) will help trigger the premium T9125 coating's heat-protection properties.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.