ZCC.CT RCKT1204MO-DR YBC401 Round Carbide Milling Inserts for Steel Roughing
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ZCC.CT RCKT1204MO-DR YBC401 Milling Insert
Ultimate Toughness for Heavy Interrupted Steel Machining
Product Overview
The ZCC.CT RCKT1204MO-DR in YBC401 grade is specifically engineered for the most demanding ISO P30-P50 steel milling applications. Where other inserts fail due to impact or thermal shock, the YBC401 grade thrives. It utilizes a specialized ultra-fine grain substrate paired with a heavy-duty CVD coating for maximum edge security. The DR (Duty Roughing) chipbreaker features a reinforced land and optimized rake angle, providing the mechanical strength required for large depths of cut and heavy-load machining.
Key Core Advantages
- [!] Extreme Impact Resistance: The YBC401 grade is ZCC.CT’s toughest CVD solution, ideal for interrupted cuts and rough scales.
- [!] Reinforced DR Geometry: Designed specifically for roughing, the DR chipbreaker minimizes edge chipping under high-pressure conditions.
- [!] Versatile Round Design: Round inserts (RCKT) provide a strong edge and allow for high-feed rates through chip thinning effects.
Technical Specifications
Decoding RCKT1204MO-DR
Round
7° Relief
Tolerance
Hole/Type
12mm Dia
4.76mm T
Roughing
| Parameter | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Insert Diameter (IC) | 12.0 mm | RCKT 43 (0.472") |
| Thickness | 4.76 mm | 0.187 in |
Recommended Cutting Data
| Workpiece Material | Speed (Vc) | Feed (fz) |
|---|---|---|
| Low Carbon Steel (P) | 120 - 220 m/min | 0.15 - 0.50 mm/z |
| Alloy Steel (P) | 100 - 180 m/min | 0.12 - 0.40 mm/z |
Applications
- Heavy-duty face milling of large steel plates.
- Copy milling for mold bases with rough scales.
- Plunge milling and profiling in unstable conditions.
- Interrupted cutting on forged or cast steel components.
Compatibility
- Standard 12mm round insert pocket seats.
- CNC Vertical (VMC) and Horizontal (HMC) centers.
- High-load machine tools with ISO 40/50 spindles.
ZCC.CT Steel Grade Comparison (Milling)
| Grade | Machining Range | Main Feature |
|---|---|---|
| YBC401 (This) | P30 - P50 (Heavy Rough) | Extreme Toughness / Interrupted Cut |
| YBC302 | P15 - P35 (Universal) | General Purpose / Balanced Wear |
Why Global Machinists Choose ZCC.CT
"The YBC401 is a lifesaver for roughing forged parts. It takes the impact without shattering."
— David S., USA 🇺🇸"Sehr zuverlässig bei Schnittunterbrechungen. Standzeit ist top für den Preis."
— Klaus M., Germany 🇩🇪"Ottimo per sgrossatura pesante. La geometria DR rompe il truciolo perfettamente."
— Marco V., Italy 🇮🇹"Consistency is great. We've replaced more expensive brands with ZCC."
— Hiroshi K., Japan 🇯🇵Frequently Asked Questions
Q: When should I choose YBC401 over YBC302?
A: Choose YBC401 when you encounter heavy interrupted cuts, scale, or unstable workpiece setups. YBC302 is better for continuous cutting and higher speeds.
Q: Is this insert suitable for stainless steel?
A: While it can handle some steel-like stainless, we recommend the YBM series for dedicated stainless steel machining to avoid work hardening.
Q: What is the primary benefit of the "DR" chipbreaker?
A: "DR" stands for Duty Roughing. It has a wider land and more robust cutting edge to withstand high feed forces during roughing.
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.