ZCC.CT RCKT1204MO-DM YBC351 Round Carbide Milling Inserts for Steel
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ZCC.CT RCKT1204MO-DM YBC351 Milling Insert
The Heavy-Duty Choice for Precision Copy & Face Milling
Product Overview
The ZCC.CT RCKT1204MO-DM in YBC351 grade is a high-performance round milling insert built for durability. The round geometry provides the strongest possible cutting edge, making it perfect for 3D profiling and copy milling. The YBC351 grade utilizes a thick CVD coating combined with a high-toughness substrate, specifically designed for ISO P25-P40 steel applications involving interruptions or unstable conditions. The DM chipbreaker balances sharpness with edge reinforcement to handle varying depths of cut without fracturing.
Core Advantages
- ✔ Strongest Edge Geometry: Round shape (RCKT) distributes cutting forces evenly, minimizing edge chipping.
- ✔ YBC351 Impact Resistance: Optimized for tough roughing where chip thickness varies or shocks are present.
- ✔ DM Chipbreaker: Engineered for medium-duty machining (DM) with excellent heat dissipation.
Technical Specifications
Decoding RCKT1204MO-DM
Round
7° Relief
Tolerance
Single Sided
12mm Dia
4.76mm T
Med-Rough
| Feature | Metric (mm) | Imperial (ANSI) |
|---|---|---|
| Insert Diameter (d) | 12.0 mm | RCKT 43 (0.472") |
| Thickness (s) | 4.76 mm | 0.187 in |
| Fixing Hole (d1) | 4.4 mm | 0.173 in |
Recommended Cutting Data
| Material | Speed (Vc) | Feed (fz) |
|---|---|---|
| Carbon/Alloy Steel | 140 - 240 m/min | 0.15 - 0.45 mm/z |
| Steel Castings | 120 - 200 m/min | 0.18 - 0.40 mm/z |
Compatible Milling Bodies:
EMR Round Insert Mills | FMR Copy Mills
Shop Matching Round Mill Bodies →Applications
- 3D Profiling and Copy Milling.
- Large-scale Face Milling of steel.
- Ramping and Plunge Milling.
- High-toughness roughing in unstable setups.
Compatibility
- CNC Machining Centers (VMC/HMC).
- Standard Round-Insert End Mills.
- Supports high-feed milling techniques.
ZCC.CT Steel Grade Matrix
| Grade | Range | Main Feature |
|---|---|---|
| YBC351 (This) | P25-P40 | Maximum Toughness / Roughing |
| YBC302 | P15-P30 | General Purpose / Versatile |
Global Reviews
⭐⭐⭐⭐⭐
"Best value for mold base roughing. YBC351 takes hits that would break other inserts."
— Robert K., USA 🇺🇸⭐⭐⭐⭐⭐
"Sehr robuste Wendeplatte. Perfekt für das Schruppen von Baustahl."
— Thomas H., Germany 🇩🇪⭐⭐⭐⭐⭐
"Reliable in 42CrMo4. DM chipbreaker handles high feed rates well."
— Paolo L., Italy 🇮🇹⭐⭐⭐⭐☆
"Very consistent quality. Works great on our Fanuc milling centers."
— Akira Y., Japan 🇯🇵FAQ
Q: Why use a round insert for milling?
A: Round inserts have the strongest geometry. As the depth of cut changes, the lead angle changes, which thins the chips and allows for higher feed rates.
Q: Can YBC351 handle stainless steel?
A: It is primarily for P-class steel. For stainless steel, we recommend ZCC.CT's YBM series.
Q: What does "DM" stand for?
A: DM is the chipbreaker designation for Medium-Rough machining. It provides a balanced rake angle for stability and heat resistance.
SEO Tech Tip: When using round inserts for roughing, remember that the effective lead angle decreases as depth of cut decreases. This allows for significantly higher feed per tooth (fz) to maximize productivity.
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.