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4 Flute Internal R End Mill For Mold Steel Die Making High Precision CNC Tool

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Carbide Boring Tool

Ms. Niki

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+86 17368153006

AMG-TOOLS

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4 Flute Internal R End Mill For Mold Steel Die Making High Precision CNC 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:

4 Flute Internal R End Mill For Mold Steel

Coating:

AlTiN/ AlTiSiN Coating

Application:

P20 H13 D2 Mold Steel

Shank Precision:

Material:

Carbide

Inch Or Millimeter:

All Can Be Customized

Supply Ability:

30000-100000pcs per month

Highlight:

4 Flute R End Mill

Die Making R End Mill

R Endmill For Mold Steel

Product Description

4 Flute Internal R End Mill For Mold Steel Die Making High Precision CNC Tool

Product Specifications

Name	4 Flute Internal R End Mill For Mold Steel
Coating	AlTiN/AlTiSiN coating
Application	P20 H13 D2 Mold Steel
Shank precision	h6
Material	Carbide
Inch Or Millimeter	All can be customized

Product Overview

Our 4-flute internal R end mill is engineered for precision mold and die manufacturing, featuring ultra-fine grain tungsten carbide and advanced geometry to deliver exceptional accuracy in steel machining. Designed with a corner radius to reduce stress concentrations, this tool provides superior edge strength while maintaining ±0.01mm tolerance in demanding CNC milling applications. Ideal for hardened tool steels (HRC 45-55), it combines high material removal rates with extended tool life.

Key Features

Premium Carbide Construction

0.5 μm micro-grain tungsten carbide (10% cobalt)
AlTiN/TiSiN coating options for enhanced wear resistance

Optimized 4-Flute Design

35° helix angle balances chip evacuation and cutting force
Corner radius (R0.5-R5.0mm) prevents edge chipping
Center-cutting capable for plunge milling

Precision Ground Geometry

Radial runout <0.005mm
Mirror-finish flutes (Ra 0.2μm) reduce friction
G2.5 dynamic balance for high-RPM stability

Material-Specific Performance

P20 (HRC 30-36): Optimized for cavity machining
H13 (HRC 48-52): Special edge prep for hardened steel
D2 (HRC 58-60): Coated versions available

Typical Applications

Injection Mold Manufacturing
- Core/cavity profiling in P20 steel
- Slideway machining in pre-hardened steels
Stamping Die Production
- Blanking punch contours in D2 steel
- Progressive die form features
Precision Engineering
- Turbine blade root forms
- Medical implant mold components