Phillips 66® Koolkut HD NC is a chlorine-free active cutting oil developed for medium-duty machining of cast iron, steel and high-speed steel. It is specially formulated with high quality base oils and fortified with oiliness additives and sulfur-containing extreme-pressure additives that provide excellent lubricity and anti-weld properties at the chip-tool interface, resulting in extended cutting tool life and good surface finishes on the machined parts.

You are currently viewing KOOLKUT® HD NC

Features & Benefits

  • Excellent performance in most difficult machining operations
  • Helps extend cutting tool life
  • Good surface finish
  • Chlorine-free for reduced environmental impact
  • Transparent for good visibility of the machining operation


  • Koolkut HD NC is recommended for light- to medium-duty machining of ferrous metals. Typical applications include:
  • Boring
  • Broaching
  • Drilling
  • Reaming
  • Sawing
  • Tapping
  • Threading

Technical Details

  • ISO Grade: 32
  • Licenses & Approvals


    Additional Details

    ISO Grade 32
    Specific Gravity @ 60°F 0.883
    Density, lbs/gal @ 60°F 7.35
    Color, ASTM D1500 6
    Flash Point (COC), °C (°F) 235 (455)
    Pour Point, °C (°F) -15 (5)
    cSt @ 40°C 30
    cSt @ 100°C 5
    SUS @ 100°F 155
    SUS @ 210°F 43
    Viscosity Index 87
    Copper Corrosion, ASTM D130 1b
    Chlorine, wt % Nil
    Fatty Oil, wt % 5
    Sulfur, Total, wt % 2.2
    Sulfur, Active, wt % 2.05
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