ZCC.CT APKT11T304-PR YBC302 Carbide Insert – 11mm Finish Milling R0.4 Steel
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APKT11T304-PR YBC302 ZCC.CT Milling Insert
High-Stability CVD Roughing Specialist for ISO P Steel Machining
Product Overview
"Seeking maximum reliability for steel roughing when facing interrupted cuts or hard surface scales?"
The APKT11T304-PR YBC302 is engineered for demanding milling environments. The PR (Reinforced) chipbreaker is designed with a stable cutting edge that excels in medium-to-heavy roughing. What defines its performance is the YBC302 Grade—a thick CVD coating combined with a high-strength substrate. This combination provides the ultimate barrier against mechanical impact and thermal cracking, making it the top choice for ISO P (Steel) and even Ductile Cast Iron.
Model Code Interpretation
90° Parallelogram
11° Clearance Angle
Hole & Chipbreaker
Size (11mm)
Thickness (3.97mm)
Radius (0.4mm)
Reinforced Roughing
Product Core Advantages
- Premium CVD YBC302 Grade: Offers exceptional toughness for heavy roughing and interrupted milling.
- PR Reinforced Edge: Minimized risk of edge chipping under high-feed conditions.
- Precision 0.4mm Radius: Ideal for 90-degree shoulder milling where clean, sharp step roots are required.
- Excellent Heat Resistance: Thick CVD layer allows for higher metal removal rates without compromising tool life.
Application Scenarios
- Roughing of carbon steel, alloy steel, and mold steel bases.
- Milling parts with rough surface scales or "crusty" finishes.
- Suitable for high-volume B2B manufacturing in the automotive and machinery sectors.
- Compatible with 11-size shoulder milling and face milling tool bodies.
Technical Specifications & Cutting Data
| Metric Model | Inch Equivalent | Cutting Speed (Vc) | Feed per Tooth (fz) |
|---|---|---|---|
| APKT11T304-PR | APKT 0.433" x 0.156" R0.016" | 150 - 280 m/min | 0.12 - 0.35 mm/z |
*Recommended for Alloy Steel (P) and Ductile Iron (K) under stable to moderately unstable conditions.
Compatibility: Matching Tool Holders
Standard APKT 11 size. Precision fit for ZCC.CT and standard indexable 90° milling cutters:
ZCC Grade Logic
- YBC301: Finishing to semi-finishing at high speeds.
- YBC302 (This Product): Universal choice for medium to rough cutting in steel.
- YBG202: PVD grade for high precision finishing and stainless steel.
Why Trust BEYOND / OYYU?
- ✅ 100% Genuine: Factory-sealed ZCC.CT products with serial numbers and QR codes.
- ✅ Technical Director Audit: Every product data sheet is reviewed for accuracy.
- ✅ Global B2B Support: Expertise in exporting to American, European, and Asian industrial markets.
Verified Customer Feedback
"YBC302 is the workhorse of our shop. We run these on all our steel roughing jobs. The PR geometry is tough as nails."
John D. - USA"Ottima resistenza all'usura su acciaio legato. Molto stabile anche con tagli interrotti."
Roberto C. - Italy"Standard ZCC quality. Reliable tool life and predictable performance in the long run."
S. Thompson - UKTechnical FAQ
PM is a universal geometry. PR is a Reinforced geometry. Choose PR specifically for Roughing or when the standard edge is chipping prematurely.
For APKT 11 size inserts, the recommended axial depth (Ap) is usually between 5-9mm. For PR roughing, staying around 6-7mm is ideal for maximum tool life.
Machining Efficiency Tip:
When roughing with YBC302, maintain a steady feed rate to utilize the CVD coating's heat resistance. If you notice severe vibrations, check the holder's runout and consider reducing the radial depth of cut (Ae) while keeping the axial depth (Ap) consistent.
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.