HRC65 Mold Steel End Mill【4 Flutes Φ1-20】

Upgrade Your Milling Experience with SAMHO Square End Mill 65 Degree【4 Flutes Φ1-20】 !

Looking for high-quality drill bits that can handle any job? Look no further! SAMHO, a trusted wholesaler, is proud to introduce our HRC65 Flat End Mill【4 Flutes Φ1-20】 drill bits from China. These durable bits are designed to provide exceptional drilling performance on a variety of materials. Whether you’re a professional or a DIY enthusiast, our drill bits will help you get the job done with precision and ease.

End mill application: high-quality carbide material, with high wear resistance and heat resistance, suitable for processing heat-treated steel, pre-hardened steel, etc.

End mill performance: with high efficiency and high load processing, to meet the medium and large mold finishing and roughing.

End mill customization: can customize non-standard end mills, such as 6 flutes end mills.

SHGS4-000【4 Flutes Φ1-20】
  • Engineered for Hardened Steels up to 65HRC – Exceptional Wear Resistance and Toughness
    Crafted from premium carbide and coated with advanced high-performance layers, this end mill offers superior wear resistance and edge durability in hardened tool steels. Designed for long uninterrupted runs in demanding applications like mold making and high-precision part machining.

  • 4-Flute Design for Higher Metal Removal Rates and Smoother Finishes
    Compared to 2-flute tools, the 4-flute geometry provides more cutting edges, improving chip load distribution and reducing tool deflection. This results in higher productivity, better surface quality, and enhanced performance in finishing and medium-depth cuts on hard materials.

  • High Red Hardness Coating – Reliable in High-Speed and Low-Lubrication Machining
    The tool features a heat-resistant coating that maintains cutting edge integrity at elevated temperatures, making it ideal for dry or minimal-lubrication machining. It meets the needs of modern, eco-friendly, and high-efficiency CNC operations.

  • Application-Specific Cutting Data Included – Maximize Performance and Stability
    Each tool comes with optimized cutting parameters for 65HRC steel, including speed, feed rate, and depth of cut. This allows users to quickly set up efficient machining strategies, reduce trial-and-error, and improve overall productivity.

  • Versatile for Mold Making, Aerospace, and Medical Part Machining
    Well-suited for finishing hardened steels and machining tight-tolerance features, this tool is a reliable choice across industries requiring precision and durability—including aerospace components, aluminum molds, and medical device parts.

  • Highly Recommend for Machining

HRC65 end mill machining recommendation
  • Specialty

Specialty
End Mills

4 Flutes Flat End Mill Catalog

HRC65 Flat End Mill

Total 32 Models-Unit(Mm)

Model Number Outside Diameter Length Of Cut Effective Length Bta Shank Taper Angle Overall Length Number Of Flutes Shank Diameter In Stock
SHGS4-0100300 1.0 3 12° 50 4 4
SHGS4-0150450 1.5 4.5 12° 50 4 4
SHGS4-0200600 2.0 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 Milling Parameters

Side Milling

Work MaterialHRC30-45 Prehardened SteelsHRC30-45 Prehardened SteelsHRC45-55 Hardened SteelsHRC45-55 Hardened SteelsHRC55-65 Hardened SteelsHRC55-65 Hardened Steels
(mm) Diameter(min-1) Speed(mm/min) Feed(min-1) Speed(mm/min) Feed(min-1) Speed(mm/min) Feed
D1.010000100800060700040
D1.58000120600060500050
D2.06000150450080400055
D2.55000150400080350055
D35000150400080300060
D4400020030001503000120
D5350030030002002500150
D6350030030002002500150
D8300030025002002000200
D10250030025002002000200
D12200025020002002000200
D14200035020003001800200
D16180035018003001600200
D18160035016003001400200
D20120035012003001200150
  • Milling Amountfor Side Milling(mm)

Work Material2.5D (Length of Cut = Diameter * 2.5)4D (Length of Cut = Diameter * 4)
Below 45HRCae = 0.07D
ap = 2D
ae = 0.07D
ap = 2D
Above 45HRCae = 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 MaterialHRC30-45 Prehardened SteelsHRC30-45 Prehardened SteelsHRC45-55 Hardened SteelsHRC45-55 Hardened SteelsHRC55-65 Hardened SteelsHRC55-65 Hardened Steels
(mm) Diameter(min-1) Speed(mm/min) Feed(min-1) Speed(mm/min) Feed(min-1) Speed(mm/min) Feed
D1.01300010001300010008000300
D1.51300012001300012008000300
D2.01200015001200015008000500
D2.51200015001200015008000800
D311000180011000180080001000
D410000220010000220075001200
D5900025009000250070001500
D6900025009000250070001500
D8800025008000250060001800
D10700025007000250055001800
D12600025006000250050002000
D14400022004000220040002200
D16350022003500220035002200
D18300020003000200030002000
D20250020002500200025002000

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.

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