ZCC.CT KNUX160410R12 YBM251 Carbide Profiling Inserts for Stainless Steel
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KNUX160410R12 YBM251: Specialized Stainless Profiling
Product Overview
The KNUX160410R12 YBM251 is a unique 55° parallelogram profiling insert designed for high-performance machining. Unlike standard rhombic inserts, the KNUX geometry is engineered for copy-turning and intricate profiles. The YBM251 Grade (CVD coated) is ZCC.CT’s premier solution for Stainless Steel (M-class), offering a specialized substrate that resists work-hardening and built-up edge (BUE), common in 304 and 316 materials.
Why Pros Use the KNUX-YBM251
- ✔ Unique 55° Parallelogram: Optimized for copying and profiling where standard shapes lack clearance.
- ✔ YBM251 CVD Coating: Features an ultra-smooth TiCN + Al2O3 layer that effectively shields against thermal deformation.
- ✔ R12 Integrated Chipbreaker: Specifically designed for stable chip control at medium feeds in gummy stainless materials.
ISO Nomenclature & Dimensional Guide
55° Para.
0° Relief
Tolerance
Special
Length
4.76mm S
1.0mm Rad
| Standard | Designation | Hand |
|---|---|---|
| Metric (ISO) | KNUX160410R12 | Right Hand |
| Imperial (ANSI) | KNUX 33.2R12 | Right Hand |
Recommended Cutting Parameters (Stainless Steel)
| Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|
| 120 - 240 m/min | 0.15 - 0.40 mm/rev |
Ideal Applications
- Stainless Steel Profiling (AISI 304, 316, 316L)
- Copy Turning of Shafts and Spindles
- Duplex Stainless Steel Machining
- Medium to high precision finishing
Machine Compatibility
- CNC Lathes & Turning Centers
- Manual Lathes with specialized holders
- Automated profiling workstations
ZCC.CT Grade Choice for Stainless
| Grade | Coating | Machining Strategy |
|---|---|---|
| YBM151 | CVD | Stable / High Speed Finishing |
| YBM251 (Current) | CVD | General Purpose / Versatile Profiling |
Real Feedback from Machinists
⭐⭐⭐⭐⭐
"The best profiling insert for 316 stainless. No notch wear after several hours."
— James M., USA 🇺🇸⭐⭐⭐⭐⭐
"Top Standzeit bei Edelstahl. Die KNUX Geometrie ist unschlagbar."
— Stefan R., Germany 🇩🇪⭐⭐⭐⭐⭐
"Consistent results. The R12 breaker manages chips perfectly."
— Paolo V., Italy 🇮🇹⭐⭐⭐⭐
"Very reliable for our shaft production. Cost per part is excellent."
— Takashi H., Japan 🇯🇵Frequently Asked Questions
1. What does the "R12" indicate?
The "R" indicates a Right-Hand insert, and "12" refers to the specific chipbreaker style integrated into the profile shape for ZCC.CT's KNUX line.
2. Why is KNUX better than DNMG for profiling?
The parallelogram shape and edge design allow for deeper copy-turning and different approach angles that a standard rhombic 55° insert cannot achieve.
3. Can I use this for dry machining?
For stainless steel, we always recommend ample coolant to prolong the life of the CVD coating and prevent built-up edge.
Industrial Tip: YBM251 is a "universal" stainless grade. If you experience vibration during profiling, check your tool holder's clamp rigidity or reduce the feed rate by 15%.
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.