4 Flute Short Carbide End Mill Custom Length Flat Bottom CNC Milling Cutter For Steel Aluminum 3/8" 1/4" 6mm 8mm Shank

4 Flute Short Carbide End Mill Custom Length Flat Bottom CNC Milling Cutter for Steel Aluminum 3/8" 1/4" 6mm 8mm Shank

Introduction:

Our precision-engineered 4-flute short carbide end mill is specifically designed for high-performance machining in confined spaces and deep pocket applications. Featuring a robust solid tungsten carbide construction (YG8 grade) with optional TiAlN coating, this flat bottom milling cutter delivers exceptional rigidity and wear resistance in steel (up to HRC55), aluminum alloys, and other engineering materials. The short flute length design significantly improves tool stability while maintaining optimal chip evacuation.

Features:

• Premium submicron grain tungsten carbide (0.5μm)

• Customizable flute lengths (standard: 3×D)

• Precision ground flat bottom (±0.005mm)

• 35° helix angle for smooth chip flow

• Available in 1/4", 3/8", 6mm, and 8mm shank diameters

• TiAlN coating option for steel applications

• Mirror polished flutes for aluminum (Ra 0.1μm)

Advantages:

✓ 50% more rigid than standard length end mills

✓ Reduced vibration in deep pocket machining

✓ Excellent surface finish (Ra 0.8μm achievable)

✓ Custom lengths available (MOQ: 10 pieces)

✓ Balanced geometry prevents deflection

Typical Applications:

• Deep cavity mold manufacturing

• Aerospace structural component pocketing

• Automotive die maintenance

• Aluminum heat sink machining

• Medical device component milling

• Precision engineering small feature work

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.

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4 Flute Short Carbide End Mill Custom Length Flat Bottom CNC Milling Cutter For Steel Aluminum 3/8" 1/4" 6mm 8mm Shank Images