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

• 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.

• 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.

• 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

• 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 ≤ 6.35 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

• 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.

• 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 – 6.35 mm (.039“– .250“, fractional inches available)
• 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, 10 x d, 15 x d, 20 x d, 30 x d and 40 x d

• 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)