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2 flute flat end mill hrc55 end mills 2 flute flat end mill hrc55 end mills

hrc55 end mills 2 flute flat end mill

SAMHO HRC55 2-Flute Micro Flat End Mills – SHBS Series (Φ0.2–6.0 mm)

The SAMHO SHBS Series is engineered for versatility and precision in micro-feature machining. Specifically designed for materials up to 55HRC, these solid carbide end mills are the ideal choice for mold manufacturing, medical device components, and intricate 3D surfaces.

Ultra-Micro Range: Precision diameters starting from Φ0.2 mm.

Material Versatility: Optimized for carbon steel, alloy steel, pre-hardened steel, and copper.

Stability: 2-flute spiral geometry ensures excellent chip evacuation and stable cutting.

Efficiency: Factory-tested milling parameters included to maximize tool life and reduce production costs.

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In the world of high-precision manufacturing, micro-features require tools that balance extreme accuracy with robust durability. The SAMHO HRC55 2-Flute Flat End Mill is designed to meet the rigorous demands of CNC operators working with aluminum alloys, pre-hardened steels, and non-ferrous metals.

Core Technical Advantages

  1. Superior Micro-Diameter Performance (Φ0.2 to Φ6.0 mm)
    Our Micro Flat End Mill series is tailored for processing intricate details and complex curved surfaces. Whether milling micro-fluidic channels or precision electronic housings, these tools provide the dimensional consistency your project requires
  2. Optimized 2-Flute Spiral Design
    Engineered to facilitate:
    • Rapid Chip Evacuation: Prevents heat buildup in deep-groove or slotting operations
    • Cutting Stability: Minimizes vibration and chatter in high-speed CNC environments
    • Multi-Stage Capability: Handles roughing, semi-finishing, and finishing cycles with a single tool
  3. Advanced Coating for HRC55 Versatility
    Crafted from high-grade solid carbide with a heat-resistant coating, this tool maintains edge sharpness across a wide range of materials:
    • Alloy & Carbon Steels: Reliable performance in general engineering
    • Copper & Aluminum: Exceptional surface finishes in non-ferrous mold making
    • Medical Equipment: High-precision milling of surgical-grade components
  4. Data-Driven Tool Protection
    SAMHO provides application-specific milling parameters (Speed, Feed, Depth of Cut) to:
    • Protect the tool’s micro-diameter tip
    • Improve machining efficiency
    • Significantly reduce production costs

Professional Usage Recommendations

  • Spindle Speed Management: If CNC machine cannot reach recommended RPMs, proportionally decrease both spindle speed and feed rate
  • Coolant Strategy: Use oil coolant for stainless steels and heat-resistant alloys to prevent edge wear
  • Precision Setup: For micro-diameter tips (Φ0.2–0.5 mm), use non-contact measuring devices
  • Vibration Control: Reduce feed rates if chattering occurs to maintain desired surface finish

Why Partner with SAMHO China?

  • Industrial-Grade Quality: 15+ models covering Φ0.2–6.0 mm in stock
  • Unbeatable Wholesale Prices: Direct-from-factory deals for global distributors and large-scale workshops
  • OEM & Customization: Specialized coatings or custom neck lengths available via our dedicated engineering team

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

2 flute end mill

Total 15 models

Model Number Outside Diameter Length Of Cut Effective Length Shank Taper Angle Overall Length Number Of Flutes Shank Diameter In Stock
SHBS2-0020040 0.2 0.4 – 12° 50 2 4 ○
SHBS2-0030060 0.3 0.6 – 12° 50 2 4 ○
SHBS2-0040080 0.4 0.8 – 12° 50 2 4 ○
SHBS2-0050100 0.5 1 – 12° 50 2 4 ○
SHBS2-0060150 0.6 1.5 – 12° 50 2 4 ○
SHBS2-0070180 0.7 1.8 – 12° 50 2 4 ○
SHBS2-0080200 0.8 2 – 12° 50 2 4 ○
SHBS2-0100300 1 3 – 12° 50 2 4 ○
SHBS2-0150400 1.5 4 – 12° 50 2 4 ○
SHBS2-0200500 2 5 – 12° 50 2 4 ○
SHBS2-0250650 2.5 6.5 – 12° 50 2 4 ○
SHBS2-0300800-4 3 8 – 12° 50 2 4 ○
SHBS2-0401000-4 4 10 – – 50 2 4 ○
SHBS2-0401000-6 4 10 – 12° 60 2 6 ○
SHBS2-0601500 6 15 – – 60 2 6 ○

Side Milling

Work Material Oxygen-free Copper Red Copper HRC30-45 carbon steel and prehardened steel HRC45-55 hardened steel
(mm)Diameter (min-1)Speed (mm/min)Feed (min-1)Speed (mm/min)Feed (min-1)Speed (mm/min)Feed
D1.0 10000 150 10000 100 8000 60
D1.5 8000 180 8000 120 6000 60
D2.0 8000 200 7000 120 5000 60
D2.5 6000 300 6000 120 4500 60
D3 7000 300 5000 150 4000 80
D4 7000 300 4000 150 4000 100
D4 7000 300 4000 150 4000 100
D6 7000 300 3500 250 3000 200

Milling Amountfor Side Milling(mm)

Work Material \ Length of Cut 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)

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.

Contour Milling

Work Material Oxygen-free Copper Red Copper HRC30-45 carbon steel and prehardened steel HRC45-55 hardened steel
(mm)Diameter (min-1)Speed (mm/min)Feed (min-1)Speed (mm/min)Feed (min-1)Speed (mm/min)Feed
D0.2 30000 200 30000 120 30000 120
D0.3 30000 220 30000 150 30000 150
D0.3 30000 300 30000 200 30000 200
D0.3 26000 300 26000 200 26000 200
D0.3 24000 500 24000 300 24000 300
D0.3 20000 500 20000 500 20000 500
D0.3 16000 800 16000 800 16000 800
D0.3 13000 1000 13000 1000 13000 1000
D0.3 13000 1200 13000 1200 13000 1200
D0.3 12000 1500 12000 1500 12000 1500
D0.3 12000 1500 12000 1500 12000 1500
D0.3 11000 1800 11000 1800 11000 1800
D0.3 10000 2200 10000 2200 10000 2200
D0.3 10000 2200 10000 2200 10000 2200
D0.3 9000 2500 9000 2500 9000 2500

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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