20mm 12 Flutes End Mills For Finishing Operations In Hardened Metals

Introduction:

20mm diameter, 12-flute carbide end mill is a precision cutting tool optimized for finishing operations in hardened metals (e.g., tool steels, D2, H13, stainless steel, and heat-treated alloys up to ~60 HRC). Its high flute count ensures a superior surface finish while maintaining efficiency in high-speed machining (HSM) applications.

Features:

✔ Material: Solid carbide (ultra-fine grain) for extreme hardness & wear resistance.

✔ 12 Flutes: Maximizes edge contact for smoother finishes in finishing passes.

✔ Optimized Geometry:

• High helix angle (~35°–45°) for better shearing & reduced cutting forces.

• Variable pitch (if available) to minimize harmonics & vibration.

✔ Advanced Coatings:

• TiAlN/AlTiN – Best for high-heat resistance in hardened steels.

• Diamond-like coatings (DLC) – For non-ferrous or abrasive composites.

✔ Short-to-medium length (reduces deflection for precision in hard metals).

Typical Applications:

• Finishing molds & dies (e.g., injection molds, stamping dies).

• Aerospace components (hardened alloys, turbine parts).

• Medical implants & precision tooling (where surface finish is critical).

• High-speed CNC machining (finishing passes at high RPMs).

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!

Other products:

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.