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CrazyDrill SST-Inox type IN and type IK 
two types of drill bits
for stainless steel

Shorter machining time* -
up to 10 times faster

  • Higher cutting speed: 1.5 - 2 times faster
  • Pecks (Q) up to 1 x d. Maximum pecks of ½ x d are common to this day, with the average being ¼ x d or less
  • Higher feed rate: 20 % – 30 % higher

*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 15 times longer

  • Special tungsten carbide: high fracture toughness and thermal shock resistance
  • High-performance coating: lower friction coefficient guarantees less heat buildup, protects from cutting edge breakage and wear; low adhesion to material prevents bonding; resistant to thermal loads (high hot hardness)
  • Additional advantage with the type IK, the drill with through-tool cooling: the coolant jet is always aimed on the drill tip; continuous, substantial cooling on the drill tip; cooling independent of protruding edges; continuous flushing of chips from the flutes

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

Higher process reliability* -
higher productivity

  • No drill or chip jamming
    • Short chips: special polished cutting edge
    • Quick chip removal: very smooth helical flutes; digressive helical flutes, divided into two areas: a chip breakage area with a steep helix angle and a chip removal area with a flat helix angle
  • Defined and certified drilling process with specifications for cutting speed and feed rate as well as pecking steps
  • Heat development under control:
    • Low torque (low friction) thanks to innovative drill tip geometry
    • Carbide sensitive to thermal shock
    • Heat-resistant coating

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

 

High degree of precision

  • Sturdy solid tungsten carbide shaft supports stable and non-oscillating drilling
  • Best drill bit for stainless steel with good centering properties due to polished tip section with small transverse cutting
  • High degree of position and drilling accuracy (diameter tolerance): diameter precision of the drill 0/+0.004 mm (0”/+ .0002”)
  • Good alignment accuracy (no deviation) and hole roundness

Lower production costs* -
up to 3 times more profit/earnings/yield

  • Shorter machining time: up to 10 times faster
  • Longer tool life: up to 15 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

  • CrazyDrill SST-Inox IK / IN 8 x d: because of the high degree of self-centering capability, on regular and straight surfaces the use of a centering or pilot hole is not necessary. On irregular respectively rough or inclined surfaces or for high-precision position accuracy: CrazyDrill Pilot SST-Inox as pilot drill, CrazyDrill Twicenter as center drill, CrazyDrill Crosspilot as pilot drill for inclined surfaces
  • CrazyDrill SST-Inox IK / IN 12 x d: as perfect preparation for high-precision position accuracy: CrazyDrill Pilot SST-Inox as pilot drill, CrazyDrill Twicenter as center drill and CrazyDrill Crosspilot as pilot drill for inclined surfaces
  • Drill size diameter range: drill 0.3 mm – 2.0 mm (.012” - .079”)
  • Increments: every 0.05 mm (.002”)
  • CrazyDrill SST-Inox with usable length up to 12 x d
  • Two types of drill bits: CrazDrill SST-Inox type IN for drilling with external cooling and CrazyDrill SST-Inox type IK, the drill with integrated cooling.

Special characteristics

  • For drilling in stainless steel drill tip geometry especially engineered towards stainless steel and super alloys (heat-resistant steel)
  • Digressive, patented helical flutes
  • Sturdy tungsten carbide shaft with through-tool cooling channels for CrazyDrill SST-Inox type IK
  • Tungsten carbide with high fracture toughness and thermal shock resistance
  • Wear-resistant and heat-resistant high-performance coating eXedur RIP
  • Self-centering
  • Deeper pecks
  • Short chips
  • Good chip removal
  • Higher feed rates
  • Long tool life
  • Very good surface quality of hole (almost reaming quality)
  • Very good drilling precision (roundness, straightness, diameter precision)
  • 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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