Custom 3.7mm 4 Flute Carbide Flat End Mill Specialized for Steel Machining TiCN AlTiN Coating Options Available

Custom 3.7mm 4 Flute Carbide Flat End Mill Specialized for Steel Machining TiCN AlTiN Coating Options Available

Introduction:

Our 3.7mm 4-flute carbide flat end mill is precision-engineered for high-performance steel machining applications. Manufactured from ultra-fine grain tungsten carbide and available with advanced TiCN or AlTiN coatings, this end mill delivers exceptional durability and precision in the most demanding CNC operations.

The optimized 4-flute design provides the perfect balance between material removal rate and surface finish quality, making it ideal for mold making, die manufacturing, and general precision machining of carbon steels, alloy steels, and hardened steels up to HRC 55.

Features:

1. Superior Tool Geometry

• True 4-flute design for balanced cutting forces and reduced vibration

• 30° helix angle optimizes chip evacuation in steel alloys

• Precision ground cutting edges (±0.005mm) for consistent performance

• Flat bottom design with <0.1mm corner radius for accurate profiling

2. Advanced Material Technology

• Sub-micron carbide substrate (0.5μm grain size) for maximum toughness

• Coating options:

  • TiCN (Titanium Carbonitride) - Ideal for general steel machining

  • AlTiN (Aluminum Titanium Nitride) - For hardened steels (HRC 45-55)

• Polished flutes minimize chip adhesion in gummy materials

3. Performance Advantages

✓ 3-5× longer tool life vs standard HSS end mills in steel
✓ 20% higher feed rates enabled by optimized flute geometry
✓ Superior surface finish (Ra 0.8μm achievable)
✓ Reduced power consumption through efficient cutting design

4. Customization Options

• Special diameters: 3.5-4.0mm available (±0.01mm tolerance)

• Cutting lengths: Standard (3×D), Long (5×D), Extra-Long (8×D)

• Shank configurations: Straight, Weldon flat, HSK compatible

• Special geometries: Variable helix, reduced neck

Applications:

① Mold & Die Industry

• Precision cavities in P20, H13 mold steels

• EDM electrode machining

② Automotive Components

• Transmission gear machining

• Engine block detailing

③ General Metalworking

• Carbon steel fixture manufacturing

• Alloy steel prototype machining

④ Tool & Die Maintenance

• Die repair and refurbishment

• Precision slot cutting

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.