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8.44mm 4 Flute Step Reamer with AlTiSiN Coating Precision Carbide Step Drill for Hardened Steel Stainless Alloys CNC Machining Tool

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8.44mm 4 Flute Step Reamer with AlTiSiN Coating Precision Carbide Step Drill for Hardened Steel Stainless Alloys CNC Machining Tool

Brand Name:	AMG
MOQ:	3-10PCS
Packaging Details:	Plastic tube
Payment Terms:	T/T/Credit Card

Detail Information

Product Description

Detail Information

Place of Origin:

CHINA

Certification:

ISO9001

Name:

8.44mm 4 Flute Step Reamer With AlTiSiN Coating

Type:

Reamer For Steel

Coolant Type:

Outside Coolant

Application:

Hardened Steels， Stainless Steel Series， Nickel-based Superalloys， Titanium Alloys，High-temperature Alloys

Shank Precision:

Material:

Carbide

Supply Ability:

30000-100000pcs per month

Highlight:

AlTiSiN Coating 4 Flute Step Reamer

Alloys 4Flute Step Reamer

Hardened Steel 4Flute Step Reamer

Product Description

8.44mm 4 Flute Step Reamer with AlTiSiN Coating

Precision Carbide Step Drill for Hardened Steel, Stainless Alloys CNC Machining Tool

Attribute	Value
Name	8.44mm 4 Flute Step Reamer with AlTiSiN Coating
Type	Reamer for steel
Coolant type	Outside coolant
Application	Hardened steels, Stainless steel series, Nickel-based superalloys, Titanium alloys, High-temperature alloys
Shank precision	H7
Material	Carbide

Product Introduction

The 8.44mm 4-Flute Step Reamer with AlTiSiN Coating is a high-performance precision cutting tool designed for machining hardened steels, stainless steel, and super alloys. This carbide step reamer features an advanced AlTiSiN coating that provides exceptional heat resistance and extended tool life in demanding CNC machining applications.

Key Features

Precision 8.44mm diameter with 4-flute design for optimal chip evacuation
Premium micro-grain carbide substrate for superior strength and wear resistance
Advanced AlTiSiN (Aluminum Titanium Silicon Nitride) coating for extreme heat resistance
Step design allows for multiple diameter machining in a single operation
Engineered for high-speed CNC machining operations
Rigorous quality control ensures consistent performance

Performance Advantages

3-5x longer tool life compared to standard coated reamers
Maintains sharp cutting edges even at elevated temperatures
Reduced friction and built-up edge formation
Excellent surface finish quality (Ra 0.8μm achievable)
Stable cutting performance in interrupted cuts
Suitable for both through holes and blind holes

Recommended Applications

Precision hole finishing in hardened steels (HRC 45-65)
Aerospace components machining (Inconel, Waspaloy, etc.)
Medical device manufacturing (surgical instruments, implants)
Automotive transmission and engine components
Die and mold industry applications
General CNC machining of stainless steel (303, 304, 316)

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