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.
Need Help With Tungaloy Inserts?
Looking for a Tungaloy equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This Tungaloy insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.