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CrazyDrill Cool SST-Inox -
up to 4 times more cooling performance 

Shorter machining time* -
up to 5 times faster

  • Drilling in one single step up to full drilling depth without pecking
  • Higher cutting speed
  • Higher feed rate

*Comparison based on drilling tools available in the market for stainless, acid-resistant and heat-resistant steel and machining parameters recommended by manufacturers.

Longer tool life* -  
up to 3 times longer tool life

  • 4 times more cooling performance avoids overheating of the cutting edges
  • Specially developed micro-grain tungsten carbide: high fracture toughness and thermal shock resistance
  • High-performance coating: heat and wear resistant, prevents bonding of cutting edges and promotes continuous chip evacuation

 *Comparison based on drilling tools available in the market for stainless, acid-resistant and heat-resistant steel and machining parameters recommended by manufacturers.

High process reliability

  • New generation of helical cooling channels:
    • Up to four times more coolant volume reaches the drill tip
    • The result is continuous and efficient chip removal as well as constant and substantial cooling of cutting edges
  • No drill or chip jamming
    • Short, compact and curved chips: special chip breaker shape of front chip flute area
    • Perfect chip removal: thanks to an extended flute shape of rear chip flute area
  • Defined and certified drilling process with specifications for cutting speed and feed rate

High degree of precision

  • The reinforced solid carbide shank guarantees stability, high degree of concentricity and hence maximum drilling precision
  • Double guiding margin ensures highest degree of straightness and surface quality
  • Best drill bit for stainless steel with good centering properties due to tip angle with small transverse cutting and chisel „s“-form
  • High degree of position and drilling accuracy (diameter tolerance): diameter precision of the drill k5 +0 mm / + 0.004 mm (.0” /+ .00016”)
    ≤ Ø 3 mm; +0.001 mm / + 0.006 mm (.00004” /+ .00024”) > Ø 3 mm up to ≤ 6 mm
  • Good alignment accuracy (no deviation) and hole roundness
  • For drilling depths over 6 x d: high position accuracy due to pilot drilling with pilot drill CrazyDrill Coolpilot

Low production costs*

  • Shorter machining time: up to 5 times faster
  • Longer tool life: up to 3 times longer
  • Higher degree of process reliability

 *Comparison based on drilling tools available in the market for stainless, acid-resistant and heat-resistant steel and machining parameters recommended by manufacturers.

Coordinated and complete drilling program

  • Pilot drilling / centering:
  • For drilling depths up to 6 x d centering is not necessary on straight surfaces. With its tip angle of 140° and its chisel “s”-form the drill has good self-centering. Mikron Tool recommends pilot drilling or centering only on irregular, rough (with CrazyDrill Coolpilot) or inclined surfaces (with CrazyDrill Crosspilot) and if high position accuracy is required.
  • For drilling depths over 6 x d Mikron Tool recommends pilot drilling with CrazyDrill Coolpilot or CrazyDrill Crosspilot on inclined surfaces.  
  • Drill size diameter range: 1 mm – 6.0 mm (.039“– .236“)
  • Increments: up to 4 mm (.157”) every 0.05 mm (.002”), 4 up to 6 mm (.157” up to .236”) every 0.1 mm (.0039”)
  • CrazyDrill Cool SST-Inox with usable length 6 x d and 10 x d

Special characteristics

  • New concept of helicoidal internal coolant channels (shape of a drop) supply up to 4 times more coolant flow, this guarantees an optimal cooling and chip evacuation
  • Sturdy tungsten carbide shaft guarantees stability and high degree of concentricity
  • Specially developed micro-grain solid carbide with high degree of fracture toughness allows drilling at high cutting speed
  • Wear- and heat-resistant high-performance coating eXedur SNP
  • Self-centering with drilling depths up to 6 x d
  • Compact, short and curved chips thanks to new chip flute profile with chip breaker shape
  • Higher feed rates
  • Long tool life
  • Very good surface quality of hole (almost reaming quality) thanks to double guiding margin
  • Very good drilling precision (roundness, straightness, diameter precision)
  • Can be reground and recoated from 1.4 mm (.055”): drilling performance of a re-sharpened CrazyDrill Cool SST-Inox in terms of performance, precision and hole quality is equal to a new drill
  • Mikron Tool produces all tools with highest repeat precision. Hence the user will benefit from long term stable production conditions (stable process and machining precision)
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