ZCC.CT RCKT2006MO-DM YBM251 Round Carbide Milling Inserts for Stainless Steel
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ZCC.CT RCKT2006MO-DM YBM251 Milling Insert
The Professional Solution for Stainless Steel & Heat-Resistant Alloys
Product Overview
The ZCC.CT RCKT2006MO-DM in YBM251 grade is a high-performance 20mm round insert engineered specifically for ISO M (Stainless Steel) and ISO S (Superalloys). The YBM251 grade features a specialized CVD coating with a smooth surface that resists built-up edge (BUE)—a common failure in stainless machining. The DM (Medium-Duty) chipbreaker is optimized with a sharp yet stable rake angle to slice through gummy materials while maintaining the structural integrity required for 20mm large-diameter milling.
Key Advantages
- [✓] Advanced YBM251 Substrate: A perfect balance of toughness and thermal deformation resistance for difficult-to-cut materials.
- [✓] Anti-Adhesion Coating: Specialized CVD technology minimizes "sticking" on the cutting edge, extending tool life in 304/316 stainless.
- [✓] Large 20mm Stability: The RCKT2006 size allows for massive metal removal rates and deep copy milling operations.
Technical Specifications
Model Decoding: RCKT2006MO-DM
Round
7° Relief
Tolerance
Hole/Type
20mm Dia
6.35mm T
Med-Cut
| Parameter | Metric (ISO) | Imperial (ANSI Equivalent) |
|---|---|---|
| Insert Diameter (IC) | 20.0 mm | RCKT 64 (0.787") |
| Thickness (S) | 6.35 mm | 0.250 in |
Recommended Cutting Data
| Material | Speed (Vc) | Feed (fz) |
|---|---|---|
| Austenitic Stainless (304/316) | 120 - 200 m/min | 0.15 - 0.45 mm/z |
| Duplex Stainless Steel | 80 - 150 m/min | 0.12 - 0.35 mm/z |
Main Applications
- High-efficiency Copy Milling and 3D Profiling.
- Large face milling of stainless steel plate.
- Machining of valve bodies and aerospace components.
- Profile roughing of High-Temperature Alloys.
Compatibility
- Standard ISO 20mm round insert milling bodies.
- Compatible with high-pressure coolant systems.
- Best suited for rigid machines (CAT50/BT50).
ZCC.CT Grade Comparison (Stainless Steel)
| Grade | ISO Range | Characteristics |
|---|---|---|
| YBM251 (This) | M20 - M35 | Excellent Reliability / Universal Grade |
| YBM151 | M10 - M25 | High Speed / Superior Wear Resistance |
What Our Customers Say
"The YBM251 is my top choice for 316L. The RCKT20 size removes material so fast."
— James P., USA 🇺🇸"Sehr gute Qualität für Edelstahl. Standzeit ist im Vergleich zu Wettbewerbern top."
— Dieter B., Germany 🇩🇪"Ottima resistenza all'usura. Usata su acciaio inox austenitico con ottimi risultati."
— Lorenzo M., Italy 🇮🇹"Consistent tool life. Best price/performance ratio in the Japanese market."
— Sato K., Japan 🇯🇵FAQ
Q: Should I use coolant with YBM251?
A: For stainless steel, high-pressure coolant is highly recommended to flush chips and prevent thermal cracks on the cutting edge.
Q: Is the 20mm insert better than the 16mm?
A: The 20mm size (RCKT2006) offers more mass and a larger radius, allowing for much deeper cuts and higher stability in heavy profiling.
Q: Can YBM251 machine regular steel?
A: It can, but the YBC series is more economical and efficient for standard P-class carbon steel. YBM is a premium grade for difficult alloys.
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.