4 flute corner radius end mills 4 flute corner radius end mills 4 flute corner radius end mills

hrc65 4 flute corner radius end mill

SAMHO — The Global B2B Choice for Premium CNC Cutting Tools

China’s Leading Manufacturer of Premium Cutting Tools
SAMHO combines innovative manufacturing processes with strict quality control. We provide high-performance CNC end mills to bulk-purchasing clients worldwide. Known for consistent product quality and competitive pricing, SAMHO is a reliable, long-term partner for industrial enterprises.

Ample Inventory and Fast Global Delivery
Most specifications within the SHGRS4 series are kept in stock and ready for immediate shipment worldwide. Our efficient supply chain ensures smooth production workflows, minimizing downtime caused by tool shortages.

Flexible OEM/ODM Customization Services
SAMHO offers comprehensive OEM/ODM customization to meet unique enterprise requirements. Clients can adjust tool length, coating type, and shank configuration to suit applications in mold manufacturing, precision parts machining, and high-hardness material processing.

Expert Technical Support for Maximum Efficiency
We provide empirically validated cutting parameters to help clients optimize machining processes quickly. This reduces trial-and-error time, improves machining consistency, and enhances overall production efficiency.

Exceptional Value and Reliable Performance
SAMHO end mills offer the ideal balance of durability, machining precision, and cost-effectiveness. They deliver stable, efficient, and trustworthy industrial solutions for bulk-purchasing clients.

SAMHO HRC65 4-Flute Corner Radius End Mill: The Nemesis of Hardened Steel

Engineered for High-Hardness Materials
This 4 flute corner radius end mill is built with a premium carbide substrate and an advanced AlTiSi+N coating. It delivers exceptional wear resistance and edge durability when machining hardened steels up to 65 HRC. Ideal for mold manufacturing and high-precision component machining, it ensures stable performance over long cutting cycles.

Four-Flute Design for Efficient Cutting
The four-flute geometry provides multiple cutting edges, optimizing load distribution and reducing tool deflection. This design improves metal removal rate and surface finish quality, making it perfect for finishing hard materials and medium-depth cuts.

High-Performance Coating for High-Speed and Micro-Lubrication Machining
The AlTiSi+N coating is heat- and oxidation-resistant, maintaining sharpness and stability even during dry MQL operations. It meets modern CNC demands for efficiency, sustainability, and reliable performance.

Empirically Tested Cutting Parameters for Maximum Efficiency
Each tool comes with validated cutting data, including spindle speed, feed rate, and cutting depth, specifically optimized for 65 HRC steel. This allows users to reduce trial-and-error time and quickly achieve consistent, high-quality results.

Broad Industry Applications
Perfect for mold manufacturing, aerospace, and medical device components, this 4 flute corner radius milling cutter excels at machining high-hardness steels and parts requiring tight tolerances. It provides reliable precision for demanding industrial production environments.


Professional Application & Industry Use

The Premier Choice for Mold Manufacturing
Designed for precision mold machining, this 4 flute bull nose end mill delivers high-accuracy milling of complex geometries. It maintains exceptional tool rigidity and stability, significantly improving production efficiency and workpiece surface finish.

A Trusted Tool for the Aerospace and Automotive Industries
Ideal for machining deep cavities and intricate features in high-strength, heat-treated components. Its superior wear resistance and stable cutting performance ensure it meets the strictest standards for dimensional accuracy and surface quality in aerospace and automotive applications.

A Reliable Solution for Medical Device Machining
Capable of precision machining surgical-grade alloys and high-hardness materials, it provides consistent surface finish and dimensional control. This ensures compliance with the rigorous quality and reliability standards required for medical device components.

The Professional’s Choice for High-Precision Machining
Whether used for mold manufacturing, aerospace parts, or medical device components, this series of 4 flute radius end mills offers stable, low-vibration, high-precision machining results. It has earned a “highly recommended” reputation among industry professionals.

Recommended Materials for Machining (Highly Recommended: ⭐️ | Recommended: ⭕️ | Suggested: )

Category Work Material Grade
DIE STEEL Carbon steels (S45C/S55C)
Alloy steels (SK/SCM/SUS)
Prehardened steels (NAK/HPM) ⭕️
Hardened steels (~55/~60/~70HRC) ⭕️
SPECIAL MATERIAL Aluminum alloys
Graphite
Copper
Plastics
Carbon fiber
Titanium alloys
Heat resistant alloys
Cemented carbide
Hard brittle (non-metallic) material

corner radius end mill

Total 72 models

Model Number Outside Diameter Length Of Cut Effective Length Radius Shank Taper Angle Overall Length Number Of Flutes Shank Diameter In Stock
SHGSR4-01001030 1 1.5 3 R0.1 12° 50 4 4
SHGSR4-01002030 1 1.5 3 R0.2 12° 50 4 4
SHGSR4-01502045 1.5 2 4.5 R0.2 12° 50 4 4
SHGSR4-01503045 1.5 2 4.5 R0.3 12° 50 4 4
SHGSR4-01505045 1.5 2 4.5 R0.5 12° 50 4 4
SHGSR4-02002060 2 3 6 R0.2 12° 50 4 4
SHGSR4-02003060 2 3 6 R0.3 12° 50 4 4
SHGSR4-02005060 2 3 6 R0.5 12° 50 4 4
SHGSR4-02002060-6 2 3 6 R0.2 12° 60 4 6
SHGSR4-02003060-6 2 3 6 R0.3 12° 60 4 6
SHGSR4-02005060-6 2 3 6 R0.5 12° 60 4 6
SHGSR4-03002090 3 4.5 9 R0.2 12° 50 4 4
SHGSR4-03003090 3 4.5 9 R0.3 12° 50 4 4
SHGSR4-03005090 3 4.5 9 R0.5 12° 50 4 4
SHGSR4-03002090-6 3 4.5 9 R0.2 12° 60 4 6
SHGSR4-03003090-6 3 4.5 9 R0.3 12° 60 4 6
SHGSR4-03005090-6 3 4.5 9 R0.5 12° 60 4 6
SHGSR4-04002120 4 6 12 R0.2 50 4 4
SHGSR4-04003120 4 6 12 R0.3 50 4 4
SHGSR4-04005120 4 6 12 R0.5 50 4 4
SHGSR4-04002120-6 4 6 12 R0.2 12° 60 4 6
SHGSR4-04003120-6 4 6 12 R0.3 12° 60 4 6
SHGSR4-04005120-6 4 6 12 R0.5 12° 60 4 6
SHGSR4-04005120-75 4 8 12 R0.5 75 4 4
SHGSR4-04010120-75 4 8 12 R1 75 4 4
SHGSR4-05005150 5 7.5 15 R0.5 12° 60 4 6
SHGSR4-05010150 5 7.5 15 R1 12° 60 4 6
SHGSR4-06002200 6 9 20 R0.2 60 4 6
SHGSR4-06005200 6 9 20 R0.5 60 4 6
SHGSR4-06010200 6 9 20 R1 60 4 6
SHGSR4-06002200-75 6 12 20 R0.2 75 4 6
SHGSR4-06005200-75 6 12 20 R0.5 75 4 6
SHGSR4-06010200-75 6 12 20 R1 75 4 6
SHGSR4-06002200-100 6 12 20 R0.2 100 4 6
SHGSR4-06005200-100 6 12 20 R0.5 100 4 6
SHGSR4-06010200-100 6 12 20 R1 100 4 6
SHGSR4-08005240 8 12 24 R0.5 60 4 8
SHGSR4-08010240 8 12 24 R1 60 4 8
SHGSR4-08005240-75 8 12 24 R0.5 75 4 8
SHGSR4-08010240-75 8 12 24 R1 75 4 8
SHGSR4-08005240-100 8 16 24 R0.5 100 4 8
SHGSR4-08010240-100 8 16 24 R1 100 4 8
SHGSR4-08005240-150 8 16 24 R0.5 150 4 8
SHGSR4-08010240-150 8 16 24 R1 150 4 8
SHGSR4-10005300 10 15 30 R0.5 75 4 10
SHGSR4-10010300 10 15 30 R1 75 4 10
SHGSR4-10005300-100 10 20 30 R0.5 100 4 10
SHGSR4-10010300-100 10 20 30 R1 100 4 10
SHGSR4-10005300-150 10 20 30 R0.5 150 4 10
SHGSR4-10010300-150 10 20 30 R1 150 4 10
SHGSR4-12005360 12 18 36 R0.5 75 4 12
SHGSR4-12010360 12 18 36 R1 75 4 12
SHGSR4-12005360-100 12 24 36 R0.5 100 4 12
SHGSR4-12010360-100 12 24 36 R1 100 4 12
SHGSR4-12005360-150 12 24 36 R0.5 150 4 12
SHGSR4-12010360-150 12 24 36 R1 150 4 12
SHGSR4-14010420-100 14 21 42 R1 100 4 14
SHGSR4-14020420-100 14 21 42 R2 100 4 14
SHGSR4-14010420-150 14 28 42 R1 150 4 14
SHGSR4-14020420-150 14 28 42 R2 150 4 14
SHGSR4-16010480-100 16 24 48 R1 100 4 16
SHGSR4-16020480-100 16 24 48 R2 100 4 16
SHGSR4-16010480-150 16 32 48 R1 150 4 16
SHGSR4-16020480-150 16 32 48 R2 150 4 16
SHGSR4-18010540-100 18 27 54 R1 100 4 18
SHGSR4-18020540-100 18 27 54 R2 100 4 18
SHGSR4-18010540-150 18 36 54 R1 150 4 18
SHGSR4-18020540-150 18 36 54 R2 150 4 18
SHGSR4-20010600-100 20 30 60 R1 100 4 20
SHGSR4-20020600-100 20 30 60 R2 100 4 20
SHGSR4-20010600-150 20 40 60 R1 150 4 20
SHGSR4-20020600-150 20 40 60 R2 150 4 20
  • SHGRS4 Contour Milling Parameters
Work Material HRC30-45Prehardened Steels HRC45-55Hardened Steels HRC55-65Hardened Steels
(mm)Diameter/Radius (min-1)Speed (mm/min)Feed (min-1)Speed (mm/min)Feed (min-1)Speed (mm/min)Feed
D1 R0.2 15000 1000 12000 1000 10000 800
D1 R0.3 15000 1000 12000 1000 10000 800
D1.5 R0.2 14000 1500 12000 1200 10000 1000
D1.5 R0.3 14000 1500 12000 1200 10000 1000
D1.5 R0.5 14000 1500 12000 1200 10000 1000
D2 R0.2 14000 1500 12000 1500 10000 1200
D2 R0.3 14000 1500 12000 1500 10000 1200
D2 R0.5 14000 1500 12000 1500 10000 1200
D2 R0.2 14000 1800 12000 1800 10000 1200
D2 R0.3 14000 1800 12000 1800 10000 1200
D2 R0.5 14000 1800 12000 1800 10000 1200
D3 R0.2 13000 1800 11000 1800 9000 1200
D3 R0.3 13000 1800 11000 1800 9000 1200
D3 R0.5 13000 1800 11000 1800 9000 1200
D3 R0.2 13000 2000 11000 2000 9000 1400
D3 R0.3 13000 2000 11000 2000 9000 1400
D3 R0.5 13000 2000 11000 2000 9000 1400
D4 R0.2 12000 2000 10000 2000 7500 1300
D4 R0.3 12000 2000 10000 2000 7500 1300
D4 R0.5 12000 2000 10000 2000 7500 1300
D4 R0.2 12000 2200 10000 2000 7500 1500
D4 R0.3 12000 2200 10000 2000 7500 1500
D4 R0.5 12000 2200 10000 2000 7500 1500
D4 R0.5 12000 2000 10000 2000 7500 1300
D4 R1 12000 2000 10000 2000 7500 1300
D5 R0.5 12000 2200 10000 2200 7500 1500
D5 R1 12000 2200 10000 2200 7500 1500
D6 R0.2 11000 2400 9000 2400 7000 1800
D6 R0.5 11000 2400 9000 2400 7000 1800
D6 R1 11000 2400 9000 2400 7000 1800
D6 R0.2 11000 2400 9000 2400 7000 1800
D6 R0.5 11000 2400 9000 2400 7000 1800
D6 R1 11000 2400 9000 2400 7000 1800
D6 R0.2 11000 2400 9000 2400 7000 1800
D6 R0.5 11000 2400 9000 2400 7000 1800
D6 R1 11000 2400 9000 2400 7000 1800
D8 R0.5 9000 2600 8000 2600 6000 2000
D8 R1 9000 2600 8000 2600 6000 2000
D8 R0.5 9000 2600 8000 2600 6000 2000
D8 R1 9000 2600 8000 2600 6000 2000
D8 R0.5 9000 2600 8000 2600 6000 2000
D8 R1 9000 2600 8000 2600 6000 2000
D8 R0.5 9000 2600 8000 2600 6000 2000
D8 R1 9000 2600 8000 2600 6000 2000
D10 R0.5 8000 2600 7000 2600 5500 2000
D10 R1 8000 2600 7000 2600 5500 2000
D10 R0.5 8000 2600 7000 2600 5500 2000
D10 R1 8000 2600 7000 2600 5500 2000
D10 R0.5 8000 2600 7000 2600 5500 2000
D10 R1 8000 2600 7000 2600 5500 2000
D12 R0.5 7500 3000 6500 2600 5000 2000
D12 R1 7500 3000 6500 2600 5000 2000
D12 R0.5 7500 3000 6500 2600 5000 2000
D12 R1 7500 3000 6500 2600 5000 2000
D12 R0.5 7500 3000 6500 2600 5000 2000
D12 R1 7500 3000 6500 2600 5000 2000
D14 R1 6500 3000 6000 2800 4500 1800
D14 R2 6500 3000 6000 2800 4500 1800
D14 R1 6500 3000 6000 2800 4500 1800
D14 R2 6500 3000 6000 2800 4500 1800
D16 R1 5500 3200 5000 2800 4000 1800
D16 R2 5500 3200 5000 2800 4000 1800
D16 R1 5500 3200 5000 2800 4000 1800
D16 R2 5500 3200 5000 2800 4000 1800
D18 R1 4500 3000 4000 2800 3500 1800
D18 R2 4500 3000 4000 2800 3500 1800
D18 R1 4500 3000 4000 2800 3500 1800
D18 R2 4500 3000 4000 2800 3500 1800
D20 R1 4000 2800 3500 2600 3000 1800
D20 R2 4000 2800 3500 2600 3000 1800
D20 R1 4000 2800 3500 2600 3000 1800
D20 R2 4000 2800 3500 2600 3000 1800
Note:
*Decrease both spindle speed and feed rate proportionally when the milling parameters exceed the machine’s maximum spindle speed;
*Recommend oil coolant for Stainless Steels and Heat Resistance Alloys;
*Recommend using a non-contact measuring device to avoid damaging the precision tip point;
*Decrease both spindle speed and feed rate proportionally in case of chattering.
Download 2: hrc65 4 flute corner radius end mill File

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