Graphite 4 Flutes Carbide End Mill Roghing Ballnose Solid Endmill

Introduction:

A Graphite-Specific Roughing Ballnose Endmill is a solid carbide tool designed for aggressive material removal in graphite electrodes, EDM applications, and composite machining. The 4-flute design balances chip evacuation and cutting stability, while the ballnose tip enables 3D contouring and detailed milling.

Features:

• Material: Ultra-fine grain carbide – Resists abrasive wear from graphite.

• Coating: Specialized graphite coating (e.g., diamond-like carbon/DLC or uncoated) to reduce edge buildup and friction.

• Geometry:

  • Roughing-specific serrations (variable pitch) for reduced vibration and chip breaking.

  • Ballnose tip (radius = 1/2 of tool diameter) for smooth finishing passes after roughing.

• Flutes: 4 flutes – Optimized for graphite’s brittleness (fewer flutes than metal-cutting endmills).

• Helix Angle: Lower helix (10°–20°) to prevent graphite chipping.

Typical Applications:

• • Primary Use: Roughing and semi-finishing of graphite electrodes, carbon fiber, and brittle composites.

  • Industries: Mold/die-making (EDM electrodes), aerospace (composites), and electronics.

  • Machines: High-speed CNC mills, graphite-dedicated machining centers.

Advantages:

✔ Abrasion Resistance: Carbide substrate outlasts HSS in graphite.
✔ Chip Control: Serrated edges break graphite dust into manageable particles.
✔ Heat Management: Graphite-specific coatings reduce heat buildup.
✔ Ballnose Versatility: Combines roughing and 3D profiling in one tool.

Technical Specifications (Example)

• Diameter: Common sizes: 3mm–20mm (e.g., 6mm ballnose).

• Shank: 6mm (for a 6mm cutter) or straight shank.

• Cutting Length: ~2–4× diameter (e.g., 12mm for a 6mm tool).

• Overall Length: ~50–100mm.

• Speed/Feed (Graphite):

  • RPM: 10,000–30,000 (depends on machine rigidity).

  • Feed Rate: 1,000–3,000 mm/min (varies with depth of cut).

Detailed Pictures:

Our workshop:

Promotion policy:

To help you experience our premium products, we’re excited to offer the following exclusive promotions for first-time buyers:

1.Free Test Samples

Get free samples (total value ≤ $20 USD) when you cover the international shipping cost.

Perfect for evaluating our product quality and performance risk-free.

2.$50 USD Discount on First Order

New customers can enjoy a $50 discount on the first order of $500 or more.

A great way to start our partnership with extra value!

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FAQ:

1. Are you a manufacturer or trading company?

We are a professional manufacturer of carbide tools which established in 2017.

2. Which CNC grinding machine do you use?

All of our carbide tools are produced by imported WALTER grinding machines.

3. Which shipping method do you usually use?

We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, ETC.

We also can send products to your shipping agent in China.

  CHANGZHOU AMG PRECISION TOOL MANUFACTURING CO., LTD. is a leading manufacturer and solution provider specializing in high-performance carbide cutting tools for precision CNC machining applications. With a strong commitment to innovation and quality, we design and produce an extensive range of standard and custom cutting tools, including carbide drill bits, end mills, reamers, and complex non-standard forming tools tailored to meet the most demanding machining challenges.