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Graphite End Mill 2 flute long neck ball nose end mill3 Graphite End Mill 2 flute long neck ball nose end mill Graphite End Mill 2 flute long neck ball nose end mill2

Graphite End Mill 2 flute long neck ball nose end mill

Reach New Depths in Graphite Machining with SAMHO Long Neck Ball End Mills (R0.1–R2 mm)

Struggling with deep-cavity interference in abrasive materials? The SAMHO Graphite Series offers the ultimate solution. These 2-flute long-neck ball end mills are specifically engineered for high-precision machining of graphite and ceramics. Featuring a high-adhesion diamond coating, they provide a verified tool life of over 18 hours, even in complex 3D contouring and deep-pocket applications.

Extended Reach: Long-neck design for superior clearance in deep cavities and undercuts.

Micro-Precision: Available in ultra-fine radii starting from R0.1 mm.

Diamond Hardness: Extreme wear resistance for abrasive non-metallic materials.

Accuracy: Precision-ground to a tight ±0.01 mm dimensional tolerance.

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In the production of intricate graphite electrodes and technical ceramics, reaching deep features without sacrificing tool life is a constant challenge. The SAMHO SHGLSR Series combines a specialized long-reach geometry with premium diamond plating to deliver stable, high-accuracy performance in the most demanding CNC environments.

Key Technical Advantages

  • Long-Neck Geometry for Deep Cavity Access
    The extended neck design is optimized for deep-pocket clearance and narrow feature access:
    • High-Precision Milling: Accesses graphite molds, electrode undercuts, and complex ceramic components that standard-length tools cannot reach
    • Minimal Shank Interference: Ensures stable cutting in confined spaces
  • High-Adhesion Diamond Coating (18+ Hours Life)
    Graphite dust is highly abrasive and can quickly destroy standard carbide edges. Our Diamond Coating technology provides:
    • Exceptional Hardness: Maintains sharp edges during high-speed dry machining
    • Extended Service Life: Proven to exceed 18 hours of continuous cutting
    • Chemical Stability: Prevents micro-chipping when machining brittle materials like electrical ceramics
  • 2-Flute Ball Nose for 3D Surface Integrity
    Hemispherical tip ideal for 3D contours, freeform surfaces, and fine fillets:
    • Maximum Chip Space: Efficiently clears abrasive dust from deep slots
    • Smooth Finishes: Reduces tool marks, ensuring superior surface integrity for EDM electrodes
  • Ultrafine Carbide & 5-Axis Precision Grinding
    Built on premium ultrafine-grain carbide substrate, every SAMHO tool undergoes advanced 5-axis CNC grinding:
    • Dimensional Tolerance: ±0.01 mm
    • Repeatable Accuracy: Essential for microstructures and high-tolerance molds

Ideal Applications

  • EDM Graphite Electrodes: Precision corner clearing and deep-cavity profiling
  • Technical Ceramics: Machining zirconia, alumina, and electroceramics
  • Micro-Mold Manufacturing: Intricate 3D features in abrasive non-metallic materials

Professional Usage Tips

  • Dust Management: Use a high-power vacuum suction system to prevent secondary wear from re-cutting graphite dust
  • Cooling Strategy: Optimized for dry machining or MQL; diamond coating performs without traditional flood coolants
  • Tool Setting: Use non-contact laser or optical tool setters to protect the diamond edge during setup

Why Source Wholesale from SAMHO?

  • Wholesale Advantage: Exceptional cost-per-part savings for high-volume electrode producers
  • Extensive Catalog: 52+ specialized models covering radii from R0.1 to R2.0 mm
  • Global Logistics: Experienced team handles international shipping for smooth delivery

Model Number Cutting Diameter Flute Length Usable Length Taper Angle Overall Length (OAL) Number of Flutes Shank Diameter In Stock
GRALR2-002020 R0.1 0.15 2 15° 50 2 4 ●
GRALR2-003020 R0.15 0.2 2 15° 50 2 4 ●
GRALR2-004020 R0.2 0.32 2 15° 50 2 4 ●
GRALR2-004030 R0.2 0.32 3 15° 50 2 4 ●
GRALR2-004040 R0.2 0.32 4 15° 50 2 4 ●
GRALR2-004050 R0.2 0.32 5 15° 50 2 4 ●
GRALR2-005020 R0.25 0.4 2 15° 50 2 4 ●
GRALR2-005030 R0.25 0.4 3 15° 50 2 4 ●
GRALR2-005060 R0.25 0.4 6 15° 50 2 4 ●
GRALR2-005100 R0.25 0.4 10 15° 50 2 4 ●
GRALR2-006020 R0.3 0.48 2 15° 50 2 4 ●
GRALR2-006030 R0.3 0.48 3 15° 50 2 4 ●
GRALR2-006040 R0.3 0.48 4 15° 50 2 4 ●
GRALR2-006060 R0.3 0.48 6 15° 50 2 4 ●
GRALR2-006100 R0.3 0.48 10 15° 50 2 4 ●
GRALR2-006120 R0.3 0.48 12 15° 50 2 4 ●
GRALR2-008100 R0.4 0.64 10 15° 50 2 4 ●
GRALR2-008120 R0.4 0.64 12 15° 50 2 4 ●
GRALR2-008160 R0.4 0.64 16 15° 50 2 4 ●
GRALR2-010030 R0.5 0.8 3 15° 50 2 4 ●
GRALR2-010050 R0.5 0.8 5 15° 50 2 4 ●
GRALR2-010060 R0.5 0.8 6 15° 50 2 4 ●
GRALR2-010080 R0.5 0.8 8 15° 50 2 4 ●
GRALR2-010100 R0.5 0.8 10 15° 60 2 4 ●
GRALR2-010120 R0.5 0.8 12 15° 50 2 4 ●
GRALR2-010160 R0.5 0.8 16 15° 50 2 4 ●
GRALR2-010200 R0.5 1.5 20 15° 60 2 4 ●
GRALR2-015060 R0.75 1.2 6 15° 50 2 4 ●
GRALR2-015100 R0.75 1.2 10 15° 50 2 4 ●
GRALR2-015160 R0.75 1.2 16 15° 50 2 4 ●
GRALR2-020040 R1 1.6 4 15° 50 2 4 ●
GRALR2-020080 R1 1.6 8 15° 50 2 4 ●
GRALR2-020100 R1 1.6 10 15° 50 2 4 ●
GRALR2-020120 R1 1.6 12 15° 50 2 4 ●
GRALR2-020160 R1 1.6 16 15° 50 2 4 ●
GRALR2-020200 R1 3 20 15° 70 2 4 ●
GRALR2-020250 R1 1.6 25 15° 65 2 4 ●
GRALR2-020300 R1 3 30 15° 70 2 4 ●
GRALR2-020350 R1 3 35 15° 70 2 4 ●
GRALR2-020400 R1 1.6 40 15° 80 2 4 ●
GRALR2-030160 R1.5 2.4 16 15° 60 2 4 ●
GRALR2-030200 R1.5 2.4 20 15° 60 2 4 ●
GRALR2-030250 R1.5 2.4 25 15° 70 2 4 ●
GRALR2-030300 R1.5 4.5 30 15° 80 2 4 ●
GRALR2-030400 R1.5 4.5 40 15° 80 2 4 ●
GRALR2-040160 R2 3.2 16 15° 70 2 4 ●
GRALR2-040200 R2 3.2 20 15° 70 2 4 ●
GRALR2-040250 R2 3.2 25 15° 70 2 4 ●
GRALR2-040300 R2 3.2 30 15° 70 2 4 ●
GRALR2-040400 R2 6 40 15° 100 2 4 ●
GRALR2-040500 R2 6 50 – 100 2 4 ●
GRALR2-040600 R2 6 60 – 100 2 4 ●

 

 

WORK MATERIAL ARAPHITE
Diameter (mm) Length（mm) Rough  Precision
Speed(min-1) Feed(mm/min) Ap(mm) Ae(mm) Speed(min-1) Feed(mm/min) Ap(mm) Ae(mm)
R0.1 2 26000 300 0.02 0.05 28000 500 0.015 0.015
R0.15 2 26000 300 0.02 0.05 28000 500 0.02 0.02
R0.2 2 26000 400 0.03 0.08 28000 600 0.04 0.03
R0.2 3 26000 400 0.03 0.06 28000 600 0.03 0.03
R0.2 4 26000 400 0.03 0.06 28000 600 0.02 0.03
R0.2 5 26000 400 0.03 0.06 28000 600 0.02 0.03
R0.25 2 26000 400 0.03 0.1 28000 800 0.05 0.04
R0.25 3 26000 400 0.03 0.1 28000 800 0.05 0.04
R0.25 6 26000 400 0.03 0.08 28000 800 0.03 0.04
R0.25 10 24000 400 0.03 0.06 28000 800 0.02 0.04
R0.3 2 26000 600 0.03 0.1 28000 800 0.06 0.04
R0.3 3 26000 400 0.03 0.1 28000 800 0.06 0.04
R0.3 4 26000 400 0.03 0.1 28000 800 0.04 0.04
R0.3 6 26000 400 0.03 0.1 28000 800 0.03 0.04
R0.3 10 24000 400 0.03 0.08 28000 800 0.02 0.04
R0.3 12 22000 400 0.03 0.08 28000 800 0.02 0.04
R0.4 10 24000 600 0.07 0.15 28000 1000 0.05 0.06
R0.4 12 22000 400 0.05 0.12 28000 1000 0.05 0.06
R0.4 16 20000 500 0.03 0.1 28000 1000 0.03 0.06
R0.5 3 26000 1200 0.1 0.3 28000 1500 0.1 0.06
R0.5 5 26000 1200 0.1 0.3 28000 1500 0.08 0.06
R0.5 6 26000 1000 0.1 0.3 28000 1200 0.05 0.06
R0.5 8 24000 1000 0.1 0.2 28000 1200 0.05 0.06
R0.5 10 24000 800 0.1 0.2 28000 1200 0.05 0.06
R0.5 12 22000 600 0.07 0.2 28000 1000 0.05 0.06
R0.5 16 20000 500 0.07 0.18 28000 1000 0.05 0.06
R0.5 20 18000 500 0.07 0.15 28000 1000 0.03 0.06
R0.75 6 26000 1800 0.15 0.45 26000 1800 0.08 0.08
R0.75 10 26000 1500 0.15 0.45 26000 1800 0.08 0.08
R0.75 16 26000 1200 0.15 0.45 26000 1800 0.06 0.08
R1 4 24000 2000 0.2 0.6 24000 2000 0.1 0.08
R1 8 24000 2000 0.2 0.6 24000 2000 0.1 0.08
R1 10 24000 2000 0.2 0.6 24000 2000 0.1 0.08
R1 12 24000 2000 0.2 0.6 24000 2000 0.08 0.08
R1 16 22000 1800 0.2 0.6 24000 2000 0.08 0.08
R1 20 18000 1300 0.2 0.6 24000 1800 0.06 0.08
R1 25 15000 1200 0.15 0.5 24000 1800 0.06 0.08
R1 30 15000 1000 0.15 0.5 24000 1500 0.06 0.08
R1 35 9000 1000 0.1 0.3 24000 1500 0.06 0.08
R1 40 7000 800 0.1 0.3 24000 1200 0.04 0.08
R1.5 16 18000 2000 0.3 0.9 22000 2500 0.12 0.1
R1.5 20 18000 2000 0.3 0.9 22000 2500 0.1 0.1
R1.5 25 15000 1700 0.2 0.7 20000 2200 0.07 0.1
R1.5 30 15000 1700 0.2 0.7 18000 2200 0.07 0.1
R1.5 40 12000 1500 0.2 0.7 18000 2200 0.05 0.1
R2 16 18000 2500 0.4 1.2 18000 2500 0.12 0.1
R2 20 18000 2500 0.4 1.2 18000 2500 0.1 0.1
R2 25 15000 2500 0.4 1.2 18000 2500 0.1 0.1
R2 30 15000 2500 0.4 1.2 18000 2500 0.1 0.1
R2 40 10000 1700 0.3 1 15000 2200 0.08 0.1
R2 50 9000 1500 0.25 0.8 15000 2200 0.08 0.1
R2 60 8000 1500 0.25 0.8 15000 2000 0.08 0.1
Download 1: Graphite End Mill 2 flute long neck ball nose end mill File
Download 2: Graphite End Mill 2 flute long neck ball nose end mill File

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