Sandvik R245-12 T3 K-MM S40T Milling Insert
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Sandvik R245-12 T3 K-MM S40T Milling Insert
The Sandvik R245-12 T3 K-MM S40T is a high-performance carbide milling insert designed for use with Sandvik CoroMill® R245 face milling cutters. It delivers excellent chip control, high stability, and consistent performance in a wide range of materials.
This insert is optimized for face milling applications, ensuring long tool life, reduced cutting forces, and improved surface finish. It is suitable for CNC machining centers and high-speed milling operations.
Key Features
- Compatible with Sandvik CoroMill® R245 cutters
- Grade K-MM for enhanced wear resistance
- Optimized for face milling of steel, stainless steel, and cast iron
- High precision for stable machining performance
- Excellent tool life and cost efficiency
Recommended Applications
- Face milling in general machining and mass production
- Suitable for CNC vertical and horizontal milling machines
- Works in a wide range of materials: ISO P (steel), ISO K (cast iron), ISO M (stainless steel)
Technical Specifications
| Parameter | Value |
|---|---|
| Insert Code | R245-12 T3 K-MM S40T |
| Insert Type | Carbide Milling Insert |
| Insert Shape | Round-Corner Rectangular (T3) |
| Grade | K-MM |
| Cutter Compatibility | CoroMill® R245 Face Milling |
| Application | Face Milling |
| Suitable Materials | Steel, Stainless Steel, Cast Iron |
| Manufacturer | Sandvik Coromant |
Why Choose Sandvik R245-12 T3 K-MM S40T?
- ✅ Reliable performance in roughing and finishing operations
- ✅ Extended tool life thanks to premium carbide grade
- ✅ Excellent surface quality with reduced vibration
- ✅ Cost-effective solution for CNC milling
SEO Keywords
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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.