ZCC.CT APKT11T308-PF YBC302 Carbide Insert – 11mm Fine Milling R0.8 Steel
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APKT11T308-PF YBC302 Milling Insert
Elite CVD Coated Grade for High-Precision Steel Finishing
Product Overview
"Which carbide insert is the most reliable for achieving a mirror-like surface finish in carbon steel and alloy steel components?"
The APKT11T308-PF YBC302 is ZCC.CT's premier solution for finishing operations in ISO P (Steel) materials. Combining a high-strength carbide substrate with the advanced YBC302 CVD coating (featuring thick Al2O3 and TiCN layers), this insert offers incredible wear resistance and thermal stability. The -PF chipbreaker is specifically designed for finishing, with a sharp geometry and positive rake angle that ensures smooth chip evacuation at lower depths of cut, preventing work hardening and surface defects.
Key Features
- ✔ Thick Al2O3 CVD Coating: Provides a superior thermal barrier for high-speed machining without edge deformation.
- ✔ PF Finishing Geometry: Sharp cutting edge designed for light depths of cut (Ap) and high surface brightness.
- ✔ 0.8mm Corner Radius: Enhanced edge strength compared to 0.4mm versions, ideal for high-feed finishing and corner durability.
Technical Specifications
| Performance Data | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Standard Model | APKT11T308-PF | APKT 040308-PF |
| Cutting Speed (Vc) | 200 - 400 m/min | 650 - 1310 SFM |
| Feed per Tooth (fz) | 0.05 - 0.20 mm/z | 0.002 - 0.008 IPT |
ISO Model Decoder
85° Parall.
11° Relief
Tolerance
Screw Fix
11mm Size
3.97mm Thk
0.8mm Rad
Finishing
Optimal System Pairing:
Shop Compatible APKT11 Tool Holders & Milling CuttersApplications & Compatibility
Primary Workpieces: Carbon Steel, Alloy Steel, Mold Steel, and Pre-hardened Steel. Ideal for shoulder milling, face milling, and step milling where precision is paramount.
Universal Compatibility: Fits all standard ISO 90-degree square shoulder milling cutters designed for APKT11T3 size inserts.
ZCC.CT Steel Grade Guide
YBC302 (Current Grade): General-purpose steel machining with CVD coating. High speed, high stability.
YBC301: Higher wear resistance, optimized for continuous, high-speed steel cutting.
YBM251: Specialized for Stainless Steel (ISO M), though occasionally used for high-alloy steels.
Why Trust Our Tools?
Directed by industry veterans with deep CNC expertise, we ensure every ZCC.CT insert is 100% authentic and performance-verified. We provide the technical documentation and parameters you need to maximize your shop's productivity and tool life.
"The PF chipbreaker is excellent. We reached an Ra of 0.8 in 1045 steel without effort. Highly recommended."
— Mark R., United States
"Sehr gute Oberflächengüte. Die Standzeit des YBC302 ist bei der Schlichtbearbeitung beeindruckend."
— Stefan B., Germany
"仕上げ加工に最適です。切り屑の処理も非常に安定しています。コストも満足。"
— Kenji T., Japan
Industrial FAQ
A: The PF geometry is designed for finishing. For heavy roughing, we recommend the -PM or -GM chipbreakers for better edge strength.
A: CVD coatings perform excellently in dry milling for steel. However, for finishing, air-blast is recommended to keep the surface clear of chips.
A: For the PF chipbreaker, the optimal Ap is between 0.1mm and 1.5mm to ensure best chip breaking performance.
💡 Material Tip: To achieve the best surface finish with YBC302, use the highest recommended cutting speed (Vc). High speeds reduce the built-up edge (BUE) and provide a superior gloss on steel parts.
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.