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4 flute flat end mills 4 flute flat end mills

hrc65 4 flute flat end mill

SAMHO SHGS4 Series High-Hardness End Mills — The Perfect Choice for Durability and Precision Machining

  • Designed for High-Hardness Materials: Specifically engineered for the high-speed machining of hardened mold steels, these end mills feature an optimized structure capable of processing materials with hardness levels up to 62 HRC, achieving an ideal balance between durability and machining precision.
  • Extensive Range of Specifications: Available in diameters from D1 mm to D20 mm, this comprehensive series covers a wide spectrum of machining requirements, accommodating diverse workpiece sizes and complex machining scenarios.
  • Superior Cutting Performance: Featuring an advanced high-temperature-resistant coating, these end mills ensure exceptional thermal stability and extended tool life during high-intensity cutting, enhancing both machining efficiency and surface finish quality.
  • Wholesale Procurement Advantages: Backed by high-end manufacturing processes in China, SAMHO offers global distributors highly competitive factory-direct pricing, delivering an optimal combination of quality and cost-effectiveness.
  • High Reliability and Professionalism: Whether for mold manufacturing or the production of high-hardness steel components, this series consistently delivers stable and precise machining results, making it the preferred choice for demanding industrial production environments.
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SAMHO HRC65 4-Flute Square End Mill: The Nemesis of Prehardened Steel

Suitable for High-Hardness Materials: This HRC65 4-flute square end mill is engineered for steel materials with hardness levels of HRC48–62, including pre-hardened and quenched steels. It effortlessly handles high-intensity machining tasks, improving production efficiency and reducing processing time.

Extended Tool Life: Featuring advanced ALTiSi+N coating, this square milling cutter minimizes tool wear, significantly extending service life while reducing the frequency of tool replacements and production downtime.

Exceptional Machining Precision: With a tool shank diameter tolerance of 0 to -0.003 mm, this 4-flute flat end mill ensures excellent stability and precision throughout the milling process. It is ideal for machining precision components, consistently delivering a uniform surface finish.

High-Efficiency Cutting Performance: The 4-flute design provides balanced cutting forces that reduce vibration and improve surface quality. Combining high-speed cutting capability with durability, this square end mill is optimized for machining high-hardness steels.

Versatile Application Scenarios: Perfect for mold making, precision component manufacturing, and high-hardness steel machining, this flat end mill bit is a reliable solution for demanding industrial production environments.

Professional Application & Industry Use

The Premier Choice for Mold Manufacturing: Engineered specifically for precision mold machining, this tool ensures high-accuracy milling of complex geometries while enhancing production efficiency and surface finish quality.

Trusted by the Aerospace and Automotive Industries: Perfect for milling high-strength, heat-treated components, it offers exceptional stability and wear resistance to meet the most rigorous industry standards.

Reliable for Medical Device Machining: Capable of precisely machining surgical-grade alloy materials, it delivers consistent surface finishes and reliable dimensional control, meeting the highest quality standards for medical device components.

The Professional’s Choice for High-Precision Machining: Whether used for molds, aerospace parts, or medical device components, this series of 4-flute square end mills provides outstanding machining precision and superior surface quality, earning it a “Highly Recommended” status across the industry.

Why Choose SAMHO as Your Wholesale Partner?

A Leading Chinese Manufacturer of High-End CNC Cutting Tools: SAMHO combines innovative manufacturing processes with rigorous quality standards while offering highly competitive pricing, making us an ideal partner for wholesale procurement.

Guaranteed Stock Availability: Most specifications within the SHGS4 series are kept in ample stock and ready for immediate worldwide shipment, ensuring uninterrupted production for our clients.

Flexible OEM/ODM Customization Services: Tailored to specific client requirements, we provide customization options for tool length, coating type, and shank configuration to meet the diverse demands of precision machining applications.

Backed by Real-World Cutting Data: Verified cutting parameters are provided to help clients optimize their machining processes quickly and reduce trial-and-error costs.

Exceptional Value and Reliable Performance: SAMHO end mills offer a balanced combination of durability, machining precision, and cost-effectiveness, delivering stable and dependable solutions for wholesale clients.

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


Total 32 models

Model Number Outside Diameter Length Of Cut Effective Length Shank Taper Angle Overall Length Number Of Flutes Shank Diameter In Stock
SHGS4-0100300 1 3 – 12° 50 4 4 ○
SHGS4-0150450 1.5 4.5 – 12° 50 4 4 ○
SHGS4-0200600 2 6 – 12° 50 4 4 ○
SHGS4-0250600 2.5 6 – 12° 50 4 4 ○
SHGS4-0300800-3 3 8 – – 50 4 3 ○
SHGS4-0300800-4 3 8 – 12° 50 4 4 ○
SHGS4-0300800-6 3 8 – 12° 50 4 6 ○
SHGS4-0401000-4 4 10 – – 50 4 4 ○
SHGS4-0401000-6 4 10 – 12° 60 4 6 ○
SHGS4-0401000-75 4 10 – – 75 4 4 ○
SHGS4-0501300 5 13 – 12° 60 4 6 ○
SHGS4-0601500 6 15 – – 60 4 6 ○
SHGS4-0601500-75 6 15 – – 75 4 6 ○
SHGS4-0601500-100 6 15 – – 100 4 6 ○
SHGS4-0802000 8 20 – – 60 4 8 ○
SHGS4-0802000-75 8 20 – – 75 4 8 ○
SHGS4-0802000-100 8 20 – – 100 4 8 ○
SHGS4-0802000-150 8 20 – – 150 4 8 ○
SHGS4-1002500 10 25 – – 75 4 10 ○
SHGS4-1002500-100 10 25 – – 100 4 10 ○
SHGS4-1002500-150 10 25 – – 150 4 10 ○
SHGS4-1203000 12 30 – – 75 4 12 ○
SHGS4-1203000-100 12 30 – – 100 4 12 ○
SHGS4-1203000-150 12 30 – – 150 4 12 ○
SHGS4-1403500-100 14 35 – – 100 4 14 ○
SHGS4-1403500-150 14 35 – – 150 4 14 ○
SHGS4-1604000-100 16 40 – – 100 4 16 ○
SHGS4-1604000-150 16 40 – – 150 4 16 ○
SHGS4-1804500-100 18 45 – – 100 4 18 ○
SHGS4-1804500-150 18 45 – – 150 4 18 ○
SHGS4-2005000-100 20 50 – – 100 4 20 ○
SHGS4-2005000-150 20 50 – – 150 4 20 ○

SHGS4 Side Milling
Work Material HRC30-45 Prehardened Steels HRC45-55 Hardened Steels HRC55-65 Hardened Steels
(mm) Diameter (min-1) Speed (mm/min) Feed (min-1) Speed (mm/min) Feed (min-1) Speed (mm/min) Feed
D1.0 10000 100 8000 60 7000 40
D1.5 8000 120 6000 60 5000 50
D2.0 6000 150 4500 80 4000 55
D2.5 5000 150 4000 80 3500 55
D3 5000 150 4000 80 3000 60
D4 4000 200 3000 150 3000 120
D5 3500 300 3000 200 2500 150
D6 3500 300 3000 200 2500 150
D8 3000 300 2500 200 2000 200
D10 2500 300 2500 200 2000 200
D12 2000 250 2000 200 2000 200
D14 2000 350 2000 300 1800 200
D16 1800 350 1800 300 1600 200
D18 1600 350 1600 300 1400 200
D20 1200 350 1200 300 1200 150
Milling Amount for Side Milling(mm)

Work Material 2.5D (Length of Cut = Diameter * 2.5) 4D (Length of Cut = Diameter * 4)
Below 45HRC ae = 0.07D
ap = 2D		 ae = 0.07D
ap = 2D
Above 45HRC ae = 0.03D
ap = 1.5D		 ae = 0.03D
ap = 1.5D
  • D：Diameter (mm)
  • ap：Axial Depth (mm)
  • ae：Radial Depth (mm)

    Contour Milling Parameters

Work Material HRC30-45 Prehardened Steels HRC45-55 Hardened Steels HRC55-65 Hardened Steels
(mm) Diameter (min-1) Speed (mm/min) Feed (min-1) Speed (mm/min) Feed (min-1) Speed (mm/min) Feed
D1.0 13000 1000 13000 1000 8000 300
D1.5 13000 1200 13000 1200 8000 300
D2.0 12000 1500 12000 1500 8000 500
D2.5 12000 1500 12000 1500 8000 800
D3 11000 1800 11000 1800 8000 1000
D4 10000 2200 10000 2200 7500 1200
D5 9000 2500 9000 2500 7000 1500
D6 9000 2500 9000 2500 7000 1500
D8 8000 2500 8000 2500 6000 1800
D10 7000 2500 7000 2500 5500 1800
D12 6000 2500 6000 2500 5000 2000
D14 4000 2200 4000 2200 4000 2200
D16 3500 2200 3500 2200 3500 2200
D18 3000 2000 3000 2000 3000 2000
D20 2500 2000 2500 2000 2500 2000
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 1: hrc65 4 flute flat end mill File
Download 2: hrc65 4 flute flat end mill File

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