Uncoated Custom End Mill 3 Flute Step End Mill OEM / ODM Available

Uncoated 3-Flute Step Forming Cutter Ultra-Sharp Carbide Edges For High-Speed Non-Ferrous Machining OEM/ODM Available

Introduction:

Our uncoated 3-flute step forming cutter features precision-ground tungsten carbide edges optimized for high-speed machining of non-ferrous materials. Designed without coatings to maintain maximum sharpness, this tool delivers exceptional surface finishes (Ra 0.2-0.8μm) while preventing material adhesion in aluminum, copper, and plastic applications. The unique 3-flute step geometry enables simultaneous multi-diameter machining, reducing cycle times by eliminating tool changes.

Features:

✔ Uncoated Carbide Construction

• Micro-grain tungsten carbide (0.5-0.8μm, 10% cobalt)

• No coating = sharper cutting edges vs. AlTiN/TiN tools

• Mirror-polished flutes reduce friction

✔ Optimized 3-Flute Design

• Balanced chip evacuation for stringy materials

• 40° helix angle reduces cutting forces

• Alternate tooth spacing minimizes vibration

✔ Step Forming Geometry

• Custom step heights (0.5-20mm, ±0.01mm tolerance)

• 90°/120° shoulder angles available

Center-cutting capable for plunge milling

✔ High-Speed Performance

• Stable at 15,000-30,000 RPM (diameter-dependent)

• Dry machining compatible

Advantages:

▶ 50% Longer Tool Life vs HSS in aluminum alloys

▶ 30% Higher Feed Rates achievable vs coated carbide

▶ Burr-Free Edges reduce secondary finishing

▶ OEM/ODM Flexibility - fully customizable geometries

Applications:

Aerospace

• Lightweight structural pockets in 6061-T6

• Cooling channel profiling in C17200 copper

Electronics

• Heat sink fin machining

• Connector slot milling

Automotive

• Aluminum housing stepped bores

• Composite trim components

Medical

• Implant contouring in Ti-6Al-4V (uncoated version)

• Polymer device housings

Detailed Pictures:

Our workshop:

New Customer Special Offers:

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!

Our advantages:

1.Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands.

2.Advanced inspection machines: We have ZOLLER, OMEGA, PG1000, etc. For inspecting each carbide tools.

3.Fast feedback: we offer 24 hours online service

4.Strict quality control system:
We strictly adhere to a three-stage inspection process for each tool:
Raw material inspection
Semi-finished product inspection after production
Final inspection after coating (pre-shipment check)

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