ZCC.CT APKT11T304-PM YBC301 Carbide Insert – 11mm Finish Milling R0.4 Steel
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APKT11T304-PM YBC301 Milling Insert
High-Stability CVD Grade for Versatile Steel Machining
Product Overview
"Which milling insert is the best all-rounder for carbon steel and alloy steel when I need high speed without sacrificing tool life?"
The APKT11T304-PM YBC301 is a premier choice for ISO P (Steel) milling. Featuring ZCC.CT’s advanced CVD Thick-Al2O3 coating, the YBC301 grade provides an exceptional thermal barrier, allowing for aggressive cutting speeds in semi-finishing to medium roughing applications. The -PM chipbreaker features a balanced edge strength and rake angle, specifically designed to control chips efficiently in various steel grades while maintaining lower cutting forces.
Key Features
- ✔ CVD Multi-Layer Coating: Excellent resistance to crater wear and plastic deformation during high-temp operations.
- ✔ PM Geometry: Reinforced cutting edge optimized for medium feed rates and chip evacuation stability.
- ✔ Enhanced Impact Toughness: Specialized carbide substrate minimizes edge chipping during interrupted cuts.
Technical Specifications
| Parameter | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Standard Designation | APKT11T304-PM | APKT 040304-PM |
| Cutting Speed (Vc) | 180 - 350 m/min | 590 - 1148 SFM |
| Feed per Tooth (fz) | 0.10 - 0.25 mm/z | 0.004 - 0.010 IPT |
Model Code Breakdown
Parall. 85°
11° Relief
Tolerance
Hole Type
11mm Edge
3.97mm Thk
0.4mm Rad
Medium
Applications & Compatibility
Workpiece Focus: Optimized for Carbon Steel (P-Class) and Alloy Steel. Highly effective for mold base plates and high-tensile structural steels.
CNC Compatibility: Fully compatible with ISO-standard 90-degree shoulder milling cutters and end mills that support the APKT 11T3 size.
ZCC.CT Steel Grade Comparison
YBC301 (Current Grade): CVD coating. Excellent thermal stability for high-speed steel milling.
YBC302: General-purpose CVD grade with balanced toughness for universal steel milling.
YBM251: Specialized PVD grade for stainless steel (M-Class), also used for some high-alloy steels.
Why Trust Our CNC Expertise?
Led by a CNC Technical Director, we provide precision-tested tooling solutions directly from the source. We guarantee 100% genuine ZCC.CT products and provide data-backed parameters to help you reduce your cost per part.
"Running these at 1000 SFM in 4140 pre-hardened steel. The tool life is incredible for the price."
— Dave L., United States
"Ottimo inserto per acciaio. Velocità di taglio molto elevata e finitura superficiale eccellente."
— Gianni B., Italy
"炭素鋼の加工に最適です。コストパフォーマンスが非常に高く助かっています。"
— Takumi Y., Japan
FAQ - Technical Support
A: YBC301 is primarily for steel (ISO P). For stainless steel (ISO M), we recommend PVD grades like YBM251 or YBG302 for better chip control and chemical stability.
A: Yes, the PM geometry and tough CVD coating handle medium interruptions well, though avoid extreme shocks without reducing feed rates.
A: Yes, CVD coatings are very stable with coolant, though air-blast is often preferred for high-speed dry milling of steel to prevent thermal cracking.
💡 Pro Tip: When using the YBC301 grade, ensure your CNC machine has the rigidity to support high cutting speeds. If vibration occurs, reduce the cutting speed (Vc) by 15% but keep the feed per tooth (fz) consistent to ensure proper chip formation.
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.