3mm - 20mm Solid Carbide Reamer 6 Flute Left Hand Reamer AlTiCrN Coated

D3-D20mm 6 Flute Left Hand Spiral Reamer AlTiCrN Coated Carbide H5-H7 Tolerance

Product introduction:

This 6-flute left-hand spiral carbide reamer features an advanced AlTiCrN coating and precision-ground geometry for superior hole finishing in hardened steels (HRC 45+), stainless steel, and high-temperature alloys. Designed for CNC machining centers and lathes, it delivers mirror finishes (Ra ≤0.2µm) and tight H5-H7 tolerances in a single pass.

Features:

✔ AlTiCrN Coated Carbide

• Withstands 1,000°C for high-speed machining

• 30% longer tool life vs. TiN/TiAlN coatings in abrasive materials

• Low friction coefficient reduces built-up edge

✔ 6-Flute Left-Hand Spiral Design

• Left-hand helix (20°-30°) pulls chips upward, preventing workpiece scratching

• Balanced 6-flute geometry ensures vibration-free operation at high RPM

✔ Ultra-Precise Tolerance (H5-H7)

• Ground cutting edges (±0.005mm runout)

• Ideal for precision bores (e.g., hydraulic valves, bearing seats)

✔ Coolant Compatibility

• Through-tool coolant holes (2-4 channels, Ø1.0mm)

• Supports MQL and high-pressure coolant (up to 70 bar)

✔ Robust Shank Options

• Cylindrical/Weldon flat shank (DIN 6535)

• HSK/BT interfaces available for CNC automation

• Hybrid Taper/Straight Sections

• Laser-Marked Depth Indicators

• Special Shanks (ER, HSK, CAT, BT)

Applications:

◼ Aerospace

• Turbine blade root holes (Inconel 718)

• Landing gear bearing bores

◼ Automotive

• Transmission gear shafts (HRC 50+)

• Fuel injection nozzles

◼ Medical & Energy

• Surgical implant bores (Ti-6Al-4V)

• Valve bodies in oil/gas equipment

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.