7.5mm 4 Flute DLC Coated Stepped End Mill Solid Carbide Multi Level Milling Cutter Precision Forming Tool for Steel Titanium CNC Machining

Introduction:

This precision-engineered 7.5mm 4-flute stepped end mill features advanced DLC (Diamond-Like Carbon) coating for superior performance in machining hardened steels, titanium alloys, and other difficult-to-cut materials. The unique stepped design allows for efficient multi-level milling operations in a single pass, significantly reducing machining time while maintaining exceptional accuracy.

Features:

• Premium submicron grain tungsten carbide substrate (0.4-0.6μm)

• Advanced DLC coating (2-3μm thickness) for extreme wear resistance

• Precision ground cutting edges with ±0.005mm tolerance

• Optimized 4-flute design for balanced chip evacuation and surface finish

• 35° helix angle for smooth cutting action and reduced vibration

• Special edge preparation for improved tool life in tough materials

• 7.5mm cutting diameter with multi-level step design

Advantages:

✓ 5× longer tool life compared to standard TiN-coated end mills

✓ Extremely low coefficient of friction (0.1-0.2) for cooler cutting

✓ Excellent adhesion resistance when machining sticky alloys

✓ Maintains sharp cutting edges even at high temperatures

✓ Suitable for dry machining and MQL applications

Typical Applications:

• Precision mold and die manufacturing (hardened steels)

• Aerospace component machining (titanium, Inconel)

• Medical implant manufacturing

• Automotive high-strength alloy components

• Energy sector (turbine blades, drilling components)

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.