DESCRIPTION

Product Overview

Optimize your core mold production and precision CNC machining lines with our heavy-duty 12mm 4 Flute HRC55 Solid Carbide End Mill. Engineered specifically for processing materials up to HRC55 hardness, this high-performance solid carbide cutter features an extended 45mm flute length and a 100mm overall length, delivering maximum axial reach for deep vertical pocketing, high-aspect-ratio slotting, and deep shoulder side milling.

Ground from premium micro-grain tungsten carbide substrate, the tool is integrated with an advanced, high-aluminum AlTiN (Bronze/Rose Gold) coating. This multi-layered coating delivers superb hot-hardness and oxidation resistance, effectively suppressing tool chatter, reducing harmonic deflection, and generating a flawless surface finish on alloy and pre-hardened steels.

Technical Specifications (12*45*12*100*4T)

Please match your CNC spindle speeds, feeds, and toolholder tolerances with our exact geometric engineering parameters:

Large quantity with big discount.

Applications & Materials

This 12mm high-rigidity extended flat milling tool is highly recommended for:

• Mold & Die Restoration: Milling medium-hardness stamping dies, plastic injection mold cores, pre-hardened block frames, and CNC tool steel components.

• General Mechanical Machining: High-feed vertical profiling, step pocketing, and contour milling in modern automated machine shops.

• Workpiece Materials: Outstanding tool lifespan across Carbon Steel, Pre-hardened Steel, Die Steel, Alloy Steel, Stainless Steel, and Cast Iron.

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.