CCMT120404-53 YBC251 Carbide Turning Insert | ZCC.CT | CVD Coated | 10pcs
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ZCC.CT CCMT120404-53 YBC251: Universal Precision Turning for Steel
Product Overview
"Which insert is the most versatile choice for finishing steel across different cutting conditions while maintaining a perfect balance of toughness and wear resistance?"
The ZCC.CT CCMT120404-53 YBC251 is the ultimate "Universal" grade turning insert designed for P-group (Steel) materials. The YBC251 grade combines a thick TiCN and Al2O3 CVD coating with a balanced carbide substrate, offering high impact resistance and stable performance in both continuous and slightly interrupted cuts. The -53 chipbreaker is specialized for finishing, providing excellent chip curling and breakage even at small depths of cut, ensuring high-quality surface integrity for high-precision components.
Key Features
- Universal YBC251 CVD Grade: The industry-standard choice for versatile steel machining from P10 to P35 conditions.
- -53 Finishing Chipbreaker: Optimized for light cutting and high-precision finishing with superior chip evacuation.
- High Edge Toughness: Specialized substrate design prevents sudden edge failure during fluctuating cutting loads.
- Precision 0.4mm Radius: Minimizes vibration and radial forces, making it ideal for thin-walled shafts and precision bores.
Technical Specifications
ISO Model Breakdown (CCMT 120404-53)
80° Diamond
7° Relief
Tolerance
Hole/Chipbreak
12.9mm Edge
4.76mm Thick
0.4mm Radius
Finishing Cut
| Metric Model | ANSI/Imperial Equivalent |
|---|---|
| CCMT120404-53 | CCMT 431-53 |
Recommended Cutting Data
| Workpiece Material | Cutting Speed (Vc) | Feed rate (fn) |
|---|---|---|
| General Steel (P) | 180 - 350 m/min | 0.05 - 0.25 mm/rev |
| Alloy Steel / Die Steel | 140 - 280 m/min | 0.05 - 0.20 mm/rev |
Tool Compatibility
Optimized for External and Internal Tooling:
Perfectly matches standard S-Type screw-down tool holders.
Applications
The CCMT 120404-53 YBC251 is the preferred choice for Semi-Finishing to Finishing in:
ZCC.CT Grade Guide (Steel Machining)
| Grade | Cutting Condition | Primary Benefit |
|---|---|---|
| YBC151 | High Speed / Continuous | Maximum Wear Resistance |
| YBC251 | General Purpose / Universal | Balanced Toughness & Hardness |
Worldwide Customer Reviews
"Versatile and Reliable"
"Used YBC251 for general shop work in the USA. It handles everything from carbon steel to alloy steel without missing a beat. Great tool life."
— David S., USA
"Excellent Chip Control"
"The -53 chipbreaker is a game changer for our CNC lathes in Germany. Perfect chips even at low feed rates for finishing passes."
— Wolfgang K., Germany
"Great Performance"
"Very stable grade for our Italian facility. The predictability of wear makes it easy to schedule tool changes."
— Giuseppe L., Italy
"Mirror Surface Finish"
"We use the 0.4 radius for precision spindles in Japan. The surface finish quality is outstanding batch after batch."
— Hiroshi M., Japan
Frequently Asked Questions
Q: Can YBC251 be used for heavy interrupted cuts?
A: YBC251 has good toughness for slight interruptions. For severe interrupted cuts, YBC351 or YBC352 with higher impact resistance is recommended.
Q: What is the ideal application for the -53 chipbreaker?
A: It is ideal for finishing and semi-finishing operations where precision chip control and high surface quality are required.
Q: Is this insert compatible with boring bars?
A: Yes, as long as the boring bar is designed for CCMT 1204 inserts (like S16M-SCLCR12), it will perform excellently in internal turning.
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.