ZCC.CT SEKN1203AFTN YBC301 Milling Insert | Steel Machining
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SEKN1203AFTN YBC301
PRECISION ENGINEERED BY ZCC.CT | BLACK DIAMOND SERIES
High-Efficiency Face Milling Solutions
The ZCC.CT SEKN1203AFTN is a staple in high-productivity machining environments. Designed for 45-degree face milling, this square insert utilizes the legendary YBC301 grade. It is specifically engineered to handle the thermal and mechanical stresses of carbon steel and alloy steel milling, ensuring a smooth surface finish and extended tool life.
| Technical Feature | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Model Number | SEKN1203AFTN | SEKN 42 AFTN |
| Thickness | 3.18 mm | 1/8" |
| Insert Width | 12.70 mm | 1/2" |
YBC301 Grade Material
YBC301 is a premium CVD (Chemical Vapor Deposition) coated grade. It features a thick Al2O3 layer and a TiCN coating over a high-strength carbide substrate. This "Black Diamond" technology provides superior heat resistance, making it the best wear-resistant milling insert for P15–P35 steel groups.
AFTN Geometry (Chipbreaker)
The AFTN geometry is optimized for general-purpose milling. It features a flat top with a precise rake angle that ensures stable chip flow and minimizes cutting force, which is essential for reducing spindle wear on your CNC machinery.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fz) |
|---|---|---|
| Carbon Steel (HB180-225) | 160 - 260 m/min | 0.10 - 0.25 mm/t |
| Alloy Steel (HB225-325) | 120 - 210 m/min | 0.08 - 0.20 mm/t |
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.