Non-Staining, Transparent Cutting Oil
Phillips 66®Koolkut®Transparent is a high-quality, clear, non-staining cutting oil developed for light- to medium-duty machining of ferrous and some non-ferrous metals, such as mild steel, ductile iron, and aluminum. It is transparent for good visibility of the workpiece during machining operations, and is non-staining to both ferrous and non-ferrous metals.

Features & Benefits

• Multipurpose cutting oil for light- to medium-duty machining operations

• Transparent for good visibility of the machining operation

• Good anti-weld properties

• Helps extend cutting tool life

• Good surface finish

• Controls heat build-up

• Protects against rust and corrosion

• Non-staining to aluminum


Koolkut Transparent is recommended for light- to medium-duty machining of ferrous and non-ferrous metals. Typical applications include:

• Automatic screw machines

• Drilling

• High-speed, low feed rate, precision machining

• Light- to medium-duty machining of ductile iron

• Sawing

• Tapping and threading of mild steel

• Turning

Technical Details

Licenses & Approvals
Additional Details
ISO Grade32
Specific Gravity @ 60°F0.89
Density, lbs/gal @ 60°F7.41
Color, ASTM D15001.5
Flash Point (COC), °C (°F)216 (420)
Pour Point, °C (°F)-21 (-6)
cSt @ 40°C30.6
cSt @ 100°C5.3
SUS @ 100°F158
SUS @ 210°F44
Viscosity Index105
Copper Corrosion, ASTM D1301a
Chlorine, wt %1.95
Fatty Oil, wt %Nil
Sulfur, Total, wt %0.08
Sulfur, Active, wt %Nil