3mm 4 Flute Solid Carbide End Mill Micro Grain Tungsten Steel Milling Cutter for Steel CNC Precision Tool HRC55 Hardness TiAlN Coated

Introduction:

Our 3mm 4-flute solid carbide end mill is engineered for high-precision machining in steel (up to HRC55), aluminum, and other engineering materials. Manufactured from ultra-fine micro-grain tungsten carbide (0.5μm grain size) with advanced TiAlN coating, this precision cutting tool delivers exceptional wear resistance and thermal stability in demanding CNC applications. The optimized 4-flute design provides perfect balance between material removal rate and surface finish quality.

Features:

• 0.5μm micro-grain tungsten carbide substrate (YG6X grade)

• Advanced TiAlN coating (3-4μm thickness) for high-temperature operations

• Precision ground cutting edges with ±0.003mm tolerance

• 35° helix angle for smooth chip evacuation

• 1/8" (3.175mm) shank with h6 tolerance

• Special edge preparation for improved edge retention

• Mirror finish flute surfaces (Ra 0.1μm) for aluminum applications

Advantages:

✓ 5× longer tool life than standard carbide end mills

✓ Exceptional wear resistance in hardened steels

✓ Reduced cutting vibration for superior surface finish (Ra 0.4μm achievable)

✓ Maintains dimensional accuracy in prolonged machining

✓ Suitable for high-speed machining (HSM) strategies

Applications:

• Precision mold and die components

• Micro mechanical parts manufacturing

• Aerospace small component machining

• Medical device fabrication

• Jewelry and watchmaking

• High-precision instrumentation

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.