- HRC65-70 Dry Cutting: Advanced Nano-TiAlSiN coating withstands up to 1100°C, perfect for high-speed dry milling on fully hardened steel.
- 40mm Long Flute Performance: Extended 40mm cutting length is expertly designed for deep-pocket walls and vertical shoulder profiling.
- Chatter-Free 4-Flute Build: Optimized flute geometry drastically minimizes vibration, providing ultra-smooth surface finishes.
- 100% Precision Balancing: 10mm straight shank ground to strict h6 tolerances, ensuring zero runout inside your CNC collet chuck.
DESCRIPTION
Product Overview
Achieve maximum structural rigidity and exceptional surface finishes on ultra-hard metals with our premium 10mm 4 Flute HRC65/70 Solid Carbide End Mill. Engineered for severe-duty CNC milling setups, this high-performance cutting tool features an extended 40mm flute length and a 100mm overall length, allowing for deep shoulder pocketing, high-aspect-ratio vertical slotting, and precision side milling in tight workpiece geometries.
Crafted from an ultra-fine, micro-grain tungsten carbide substrate, the cutting head is protected by an advanced, multi-layered Nano-TiAlSiN (Rainbow/Blue-Purple) coating. This high-silicon coating structure provides extraordinary thermal stability, enabling high-speed dry machining on fully hardened steels up to HRC65 and HRC70 while entirely preventing tool deflection and built-up edge (BUE).
Technical Specifications (10*40*10*100*4T)
Please match your CNC spindle speeds and feeds with our exact geometric parameters:
Technical Parameters | Industrial Specification Value |
Cutting Diameter (d) | 10.0 mm |
Flute Cutting Length (l) | 40.0 mm (Long Flute Series) |
Shank Diameter (D) | 10.0 mm (Straight Shank) |
Overall Tool Length (L) | 100.0 mm (Extended Long Reach) |
Number of Flutes (T) | 4 Flutes (Flat Square Head / Nose) |
Applicable Material Hardness | HRC45, HRC55, HRC65, Up to HRC70 |
Surface Coating Type | Premium NaNo-TiAlSiN Coating (Blue/Purple Iridescent) |
| HRC45 | HRC55 | HRC60 | HRC65 |
| Grain Size: 0.6um | Grain Size: 0.6um | Grain Size: 0.5um | Grain Size: 0.4um |
| Co: 10 % | Co: 10 % | Co: 12 % | Co: 12.5 % |
| Flexural strength: 3350N/mm2 | Flexural strength: 4000N/mm2 | Flexural strength: 4300N/mm2 | Flexural strength: 4300N/mm2 |
| AlTiN | TiAlN | TiSlN | Nano | |
| Hardness(HV) | 3200 | 2800 | 3600 | 42(GPA) |
| Thickness(UM) | 2.5-3 | 2.5-3 | 3 | 3 |
| Oxidation Temp | 900 | 800 | 1000 | 1200 |
| Friction Coefficient | 0.3 | 0.3 | 0.45 | 0.4 |
| Color | Black | Violet | Copper | Blue |
Applications & Materials
This 10mm high-hardness extended flat milling cutter is explicitly recommended for:
Die & Mold Machining: Milling high-strength stamping dies, injection molds, forged steel bases, and fully quenched cavity blocks.
Aerospace & Precision Machining: Contouring high-nickel alloy structures, titanium components, and tool steel assemblies.
Workpiece Materials: Exceptional machining speeds across Hardened Steel, Heat-Treated Alloy Steel, Spring Steel, Stainless Steel, and Cast Iron.
Large quantity with big discount.
CNC Inserts - Frequently Asked Questions
1. How do I choose the right grade for my specific machining application?
Choosing the correct grade is crucial for tool life and performance. We provide a comprehensive Grade Cross-Reference Chart that maps our CD Carbide grades to major international brands like Sandvik, Mitsubishi, and Kyocera. If you are unsure, simply provide us with the workpiece material (P, M, K, S, H) and machining conditions, and our engineers will recommend the best solution.
2. Can you provide customized CNC tools based on our drawings?
Yes. As a factory-direct manufacturer, we specialize in bespoke engineering. Whether you need non-standard dimensions, specific chipbreakers, or customized coatings for unique alloys, our technical team can develop products based on your technical drawings (PDF/STEP) or physical samples.
3. Do you offer free samples for testing before bulk orders?
We understand that "trial cutting" is the only way to verify tool stability. We offer sample packs for professional buyers to test performance on their own CNC machines. Please contact our sales team with your machine specifications and the material you are processing to request your trial samples.
4. How do you ensure the quality consistency of your carbide inserts?
Our quality control is integrated into every step of the production process in Zhuzhou. We use high-purity tungsten carbide powder and advanced PVD/CVD coating equipment. Each batch undergoes rigorous inspection, including microscopic edge analysis and hardness testing, to ensure that the performance of the 1,000th insert is identical to the 1st.
5. What is the typical lead time for international B2B orders?
For standard models in stock (such as WNMG, CNMG, etc.), we usually ship within 3-5 business days. For customized tools or large-volume OEM orders, the production cycle typically ranges from 2 to 4 weeks, depending on the complexity of the design and coating requirements.
6. Are you a manufacturer or a trading company?
We are a direct manufacturing enterprise based in Zhuzhou, the hunan of China’s tungsten carbide industry. By cutting out the middleman, we provide factory-direct pricing and faster technical support. This allows us to offer more flexible MOQs (Minimum Order Quantities) for small-to-medium-sized distributors and specialized machine shops.
