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hrc55 end mills 2 flute ball nose end mill 2 flute ball nose end mill hrc55 end mills 2 flute ball nose end mill 3

hrc55 end mills 2 flute ball nose end mill

SAMHO SHBR2 Series – Solid Carbide Ball Nose End Mills for Pre-Hardened & Alloy Steels

Achieve exceptional surface finishes on pre-hardened and alloy steels with the SAMHO SHBR2 Series. Engineered for high-precision CNC machining, these solid carbide ball nose cutters feature the advanced HB Series coating for superior heat resistance and wear performance.

Precision Range: Available from ultra-fine R0.1 mm to robust R10.0 mm.

Hardness Compatibility: Specifically designed for materials up to 55HRC.

Surface Quality: Ideal for 3D profiling, roughing, and fine finishing.

Wholesale Value: Premium Chinese manufacturing with factory-direct pricing for global distributors.

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In modern mold making and component manufacturing, surface integrity is paramount. The SAMHO HRC55 2-Flute Ball Nose Series is precision-ground using state-of-the-art CNC technology to provide the stability and accuracy required for complex 3D surfaces and sculpted features.

Core Technical Advantages

  • High-Performance Solid Carbide & HB Coating
    Manufactured from premium solid carbide, these end mills are rated for materials up to HRC55. The latest HB Series Nano-coating provides an exceptional thermal barrier, ensuring the tool maintains cutting edge sharpness even during high-speed operations in tough alloy steels
  • Optimized 2-Flute Geometry for 3D Profiling
    The 2-flute configuration offers the perfect balance between tool strength and chip evacuation space:
    • Reduced Vibration: Minimizes harmonic chatter during high-speed finishing
    • Stable Cutting: Ensures consistent contact for smooth, mirror-like surface results on complex 3D contours
    • Versatility: Customizable 3-flute and 4-flute options available for specific application needs
  • Ultra-Tight Shank Tolerances
    Shank diameters controlled within 0 to +0.003 mm tolerance:
    • Maximum Compatibility: Fits high-precision shrink-fit and hydraulic tool holders
    • Reduced Runout: Extends tool life and improves workpiece accuracy
  • Wide Diameter Range (R0.1 to R10.0 mm)
    With 32 specialized models, SAMHO covers everything from micro-scale precision (R0.1 mm) for electronics to large-scale mold cores (R10.0 mm)

Professional Application Industries

  • Mold & Die Industry: Core and cavity 3D finishing, rest milling
  • General Engineering: Precision machining of pre-hardened tool steels and carbon steels
  • Medical & Aerospace: Complex 3D component profiling

Field-Tested Cutting Parameters & Tips

  • Overhang Ratio: Parameters based on 3×D reach. If tool overhang exceeds this, decrease spindle speed and feed rate proportionally to avoid deflection
  • Cooling Advice: Oil coolant recommended for stainless steels and heat-resistant alloys to maintain lubricity and prevent chip welding
  • Machine Limits: Ensure parameters do not exceed your CNC machine’s maximum spindle speed; adjust speed and feed rate together to maintain the chip load

Why Source Wholesale from SAMHO?

  • Direct Factory Pricing: Cut out the middleman to improve profit margins
  • Ready-to-Ship Stock: Massive inventory on all 32 models for immediate global dispatch
  • OEM & Customization: Contact our engineering team for custom lengths, shank styles, or specialized coatings via zane@samhotool.com

Model Number Cutting Diameter Flute Length Taper Angle Overall Length (OAL) Number of Flutes Shank Diameter In Stock
SHBR2-002003 R0.1 0.3 12° 50 2 4 ●
SHBR2-0030045 R0.15 0.45 12° 50 2 4 ●
SHBR2-004006 R0.2 0.6 12° 50 2 4 ●
SHBR2-005008 R0.25 0.8 12° 50 2 4 ●
SHBR2-006009 R0.3 0.9 12° 50 2 4 ●
SHBR2-008012 R0.4 1.2 12° 50 2 4 ●
SHBR2-010015 R0.5 1.5 12° 50 2 4 ●
SHBR2-015023 R0.75 2.3 12° 50 2 4 ●
SHBR2-020030 R1 3 12° 50 2 4 ●
SHBR2-030045-3 R1.5 4.5 – 50 2 3 ●
SHBR2-030045-4 R1.5 4.5 12° 50 2 4 ●
SHBR2-030045-6 R1.5 4.5 12° 50 2 6 ●
SHBR2-040060-4 R2 6 – 50 2 4 ●
SHBR2-040060-6 R2 6 12° 50 2 6 ●
SHBR2-050075 R2.5 7.5 12° 50 2 6 ●
SHBR2-060090 R3 9 – 60 2 6 ●
SHBR2-060090-75 R3 9 – 75 2 6 ●
SHBR2-060090-100 R3 9 – 100 2 6 ●
SHBR2-080120 R4 12 – 60 2 8 ●
SHBR2-080120-75 R4 12 – 75 2 8 ●
SHBR2-080120-100 R4 12 – 100 2 8 ●
SHBR2-080120-150 R4 12 – 150 2 8 ●
SHBR2-100150 R5 15 – 75 2 10 ●
SHBR2-100150-100 R5 15 – 100 2 10 ●
SHBR2-100150-150 R5 15 – 150 2 10 ●
SHBR2-120180 R6 18 – 75 2 12 ●
SHBR2-120180-100 R6 18 – 100 2 12 ●
SHBR2-120180-150 R6 18 – 150 2 12 ●
SHBR2-140200-150 R7 20 – 150 2 14 ●
SHBR2-160240-150 R8 24 – 150 2 16 ●
SHBR2-180250-150 R9 25 – 150 2 18 ●
SHBR2-200300-150 R10 30 – 150 2 20 ●

 

Work Material Copper / OFC / Tough Pitch Copper HRC 30–45 Carbon Steel / Pre-Hardened Steel HRC 45–55 Hardened Steel
Diameter (mm) Speed(min-1) Feed(mm/min) Ap   (mm) Ae   (mm) Speed(min-1) Feed(mm/min) Ap   (mm) Ae   (mm) Speed(min-1) Feed(mm/min) Ap   (mm) Ae   (mm)
0.2 30000 150 0.006 0.006 30000 150 0.006 0.006 30000 150 0.006 0.006
0.3 26000 300 0.01 0 26000 300 0.01 0 24000 200 0.008 0.008
0.4 22000 400 0.015 0.015 22000 400 0.015 0.015 22000 300 0.01 0.01
0.5 20000 400 0.015 0.015 20000 400 0.015 0.015 22000 400 0.015 0.015
0.6 20000 800 0.02 0.02 20000 800 0.02 0.02 20000 600 0.015 0.015
0.8 18000 1200 0.02 0.03 18000 1200 0.02 0.03 20000 800 0.02 0.02
1 16000 1200 0.03 0.04 16000 1200 0.03 0.04 18000 1000 0.02 0.03
1.5 16000 1500 0.03 0.05 16000 1500 0.03 0.05 16000 1200 0.02 0.04
2 15000 1800 0.03 0.05 15000 1800 0.03 0.05 14000 1800 0.02 0.05
2 15000 1800 0.04 0.05 15000 1800 0.04 0.05 14000 1800 0.02 0.05
3 14000 2200 0.04 0.07 14000 2200 0.04 0.07 13000 2200 0.03 0.06
3 14000 2200 0.05 0.07 14000 2200 0.05 0.07 13000 2200 0.03 0.06
3 14000 2200 0.04 0.07 14000 2200 0.04 0.07 13000 2200 0.03 0.06
4 14000 2400 0.04 0.08 14000 2400 0.04 0.08 12000 2400 0.03 0.06
4 14000 2400 0.05 0.08 14000 2400 0.05 0.08 12000 2400 0.03 0.06
5 12000 2600 0.05 0.08 12000 2600 0.05 0.08 12000 2400 0.03 0.06
6 12000 2600 0.05 0.08 12000 2600 0.05 0.08 10000 2600 0.03 0.08
8 10000 3000 0.05 0.1 10000 3000 0.05 0.1 9000 2800 0.03 0.1
10 9000 3000 0.05 0.12 9000 3000 0.05 0.12 8000 2800 0.03 0.12
12 9000 3000 0.05 0.15 9000 3000 0.05 0.15 7000 2800 0.03 0.12
14 7000 3000 0.08 0.15 7000 3000 0.08 0.15 6000 2800 0.03 0.15
16 6000 3000 0.08 0.15 6000 3000 0.08 0.15 5500 2800 0.03 0.15
18 5000 3000 0.08 0.15 5000 3000 0.08 0.15 4500 2800 0.03 0.15
20 4500 3000 0.08 0.15 4500 3000 0.08 0.15 4000 2800 0.03 0.15
Download 1: hrc55 end mills 2 flute ball nose end mill File
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