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4mm 2 Flute PCD Diamond Extreme Hardness Ball Nose End Mill - 30.6522 (Karnasch)

(306522040020) Performance
£218.22 £181.85
The 30.6522 series from Karnasch is an extreme hardness PCD Diamond ball nose End Mill ranging from 3-12mm diameter. The special PCD EXTREME has a higher hardness than standard PCD and is laser ground to produce an ultra sharp cutting edge. Ideal for carbon fibre, glass reinforced plastics, aluminium, copper and brass.
  • N
Approx. 7 days. Subject to availability
Carbon Steel ~ HB 225
Alloy Steels HB225-325
Pre-Hardened Steel HRc30~40
Hardened Steels HRc-40-45
Hardened Steels HRc-45-55
High Hardened Steels HRc55-70
Stainless Steel
HRSA's (Heat Resistant Super Alloys)
Cast Iron
Excellent Good
Features & Benefits
  • For Carbon Fibre, Glass Reinforced Plastics, Aluminium, Copper & Brass.
  • PCD EXTREME diamond coated carbide.
  • PCD Extreme is a premium grade of PCD developed by Karnasch offering 80% more hardness than standard PCD. Laser ground, high performance and fantastic tool life compared to standard PCD.
  • Ball nosed geometry.
  • Ultra-sharp cutting edge from laser grinding process ensures the sharpest cutting edge and prevents delamination.
  • Specification
    Applicable Materials Non-Ferrous
    Performance 5
    Helix Profile Standard
    Shank Plain
    L3 (Reach) 20
    D1 (Diameter) 4
    D2 (Shank) 6
    L1 (Flute Length) 2.5
    L2 (Overall Length) 75
    Flutes 2
    Flute Type Reduced Neck
    D3 (Neck Diameter) 3.8
    Substrate PCD Diamond
    Surface Treatment Uncoated (Polished)
    End Profile Ball Nose
    Brand Karnasch
    Product Range Composite Milling Cutters
    Cutwel Sku 306522040020
    Compiled Summary
    • D1 - 4
    • D2 - 6
    • L1 - 2.5
    • L2 - 75
    Product Questions
    Downloads & Cutting Data