Deep Hole Drilling Oil C 400

C 400 is a neat oil cutting fluid specially designed for deep hole drilling (hole diameter to depth ratio > 5). It is particularly suitable for heavy-duty metalworking processes that demand excellent flushing and lubrication performance.

Product Application

C400 Deep Hole Drilling Oil is formulated for complex-profile metal machining generating fine swarf, covering deep hole drilling, boring and gun drilling; it is also applicable to high-speed milling and turning operations.
C400 works on various hard ferrous metals including alloy steel, stainless steel and high-nickel alloys, as well as honing of high-tensile strength metals.

Product Advantages

  • Specially designed for heavy-duty machining
  • Delivers superior surface finish and dimensional accuracy
  • Excellent chip evacuation performance
  • Multi-purpose formulation for severe grinding applications
  • Low foaming & low misting under high-pressure circulation with good fluidity
  • Extends cutting tool service life

Typical Technical Data

Item Specification
Appearance Transparent brown liquid
Specific Gravity @20℃, g/cm³ 0.845
Kinematic Viscosity @40℃, cSt 10.2
Open Cup Flash Point, ℃ ≥130
Four-ball Test PB value, kg 105
Four-ball Test PD value, kg 750
Long-term Wear Scar (392N, 60min), mm 0.43
Foam Tendency @24℃, ml/ml 10/0
Foam Tendency @93.5℃, ml/ml 50/0

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