ZCC.CT APKT11T316-PR YBC302 Carbide Insert – 11mm Finish Milling R1.6 Steel
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APKT11T316-PR YBC302 ZCC.CT Milling Insert
High-Toughness CVD Solution for Heavy Steel Milling & Roughing
Product Overview
"Which insert provides the highest edge strength for roughing alloy steel with a 1.6mm corner radius?"
The APKT11T316-PR YBC302 is a robust 90° shoulder milling insert designed for the 11-size cutter family. The PR chipbreaker features a reinforced cutting edge specifically balanced for medium-to-heavy roughing. What sets this model apart is the YBC302 Grade—a thick CVD coating with a high-strength substrate that excels in ISO P (Steel) applications, offering unmatched resistance to mechanical shock and thermal cracking during heavy interrupted cuts.
Model Code Interpretation
90° Parallelogram
11° Clearance Angle
Hole & Chipbreaker
Size (11mm)
Thickness (3.97mm)
Radius (1.6mm)
Steel Roughing
Product Core Advantages
- Premium CVD YBC302 Grade: Superior impact resistance and wear resistance for high-speed roughing.
- Extra-Large 1.6mm Radius: Provides ultimate edge strength, preventing tip breakage in heavy-duty cycles.
- PR Reinforced Geometry: Stable cutting edge design to handle large feed rates and scale-covered surfaces.
- Thermal Protection: Thick coating layer acts as a heat shield, extending tool life in dry machining.
Application Scenarios
- Roughing of structural steel, carbon steel, and alloy steels.
- Machining parts with heavy interruptions (slots, holes, cross-milling).
- Face milling and 90° shoulder milling in mold and die production.
- Suitable for machines with moderate to high rigidity.
Technical Specifications & Cutting Data
| Metric Model | Inch Equivalent | Cutting Speed (Vc) | Feed per Tooth (fz) |
|---|---|---|---|
| APKT11T316-PR | APKT 0.433" x 0.156" R0.063" | 160 - 300 m/min | 0.15 - 0.40 mm/z |
*Ideal for roughing alloy steels (P) and ductile cast iron (K).
Compatibility: Matching Tool Holders
Standard 11-size (APKT 11). Fits all ZCC.CT and standard ISO shoulder milling cutters:
ZCC CVD Grade Logic
- YBC301: High speed steel machining. Best wear resistance.
- YBC302 (This Product): The "Roughing King". Optimized for impact and high stability.
- YBG202: PVD grade for stainless steel and finishing work.
Why Trust BEYOND / OYYU?
- ✅ Technical Director Audited: Each listing is verified for technical parameters.
- ✅ 100% Original: We sell only authentic ZCC.CT products in factory-sealed boxes.
- ✅ Global Industrial Supplier: Over 10 years experience serving the CNC machining industry.
Verified Customer Feedback
"The 1.6mm radius makes a huge difference in edge life. I'm roughing 4140 steel and these hold up much better than the standard 08 radius."
Tom R. - USA"Sehr robuste Wendeplatte. YBC302 ist perfekt für instabile Bedingungen."
Markus S. - Germany"Ottima per sgrossatura pesante. Il raggio 1.6 previene la rottura dello spigolo. Molto soddisfatto."
Fabio G. - Italy"品質が非常に安定しています。鋼材の粗加工で欠けにくく、寿命が長いです。"
Yukihiro N. - Japan"Fast shipping and original ZCC quality. The PR chipbreaker handles big chips with ease."
S. Miller - UKTechnical FAQ
No. YBC302 is a CVD grade optimized for Roughing Steel at high volume. For stainless steel or precision finishing, YBG202 (PVD) is usually preferred.
The 1.6mm (16) radius provides a much larger edge mass, which dissipates heat better and significantly increases the structural strength of the corner during high-feed milling.
While optimized for steel (P), YBC302 performs very well in ductile cast iron (K) roughing due to its extreme toughness.
Heavy Milling Tip:
When using the PR chipbreaker for roughing, ensure you maintain a feed rate (fz) of at least 0.15mm per tooth. If the feed is too low, the edge may rub rather than cut, which can lead to work hardening and reduced tool life in alloy steels.
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.