AlTiN Coated Step Reamer 10mm 6 Flute Reamers For Hardened Steel

10mm 6 Flute AlTiN Coated Step Chamfer Reamer Internal Coolant for Steel Hard Alloys

Product introduction:

This high-performance carbide step chamfer reamer combines 6-flute precision, AlTiN coating, and internal coolant channels to deliver superior hole finishing in hardened steels (HRC 45+), stainless steel, and exotic alloys. Designed for CNC machining centers, it performs chamfering and reaming in a single pass, reducing cycle times while maintaining H6-H7 tolerances (±0.01mm).

Features:

✔ AlTiN Coated Carbide Construction

• Advanced AlTiN coating (4-5µm) withstands 900°C for extended tool life

• Micro-grain carbide substrate (K10 grade) for wear resistance in hardened materials

✔ 6-Flute Spiral Design

• 30°-45° helix angle for optimal chip evacuation

• Balanced cutting edges reduce vibration in high-speed machining

✔ Internal Coolant System

• 2-4 precision coolant holes (Ø1.2mm) for direct cutting-edge lubrication

• Supports high-pressure coolant (70+ bar) for deep-hole applications

✔ Integrated Step Chamfer Geometry

• Chamfer angle: 45°-90° (customizable)

• Eliminates secondary operations (drilling + chamfering in one tool)

✔ High-Precision Ground Edges

• H6-H7 tolerance compliance (ISO 286)

• Mirror-like finishes (Ra ≤0.4µm)

Advantages:

50% Longer Tool Life vs. TiN-coated reamers in hardened steel

30% Faster Cycle Times – Combines chamfering + reaming

Chip-Free Machining – Spiral flutes + coolant prevent clogging

Deep-Hole Ready – Stable up to 5xD depth

Applications:

◼ Aerospace

• Turbine disk bolt holes (Inconel 718)

• Landing gear bearing bores

◼ Automotive

• Transmission gear shafts (HRC 50+)

• High-pressure fuel injectors

◼ Medical

• Surgical implant threading (Ti-6Al-4V)

• Bone screw pilot holes

◼ Mold & Die

• Core/cavity finishing (H13/P20 steel)

• Ejector pin chamfering

Detailed Pictures:

Our wokshp:

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.