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CrazyDrill Pilot SST-Inox –
centering, pilot drilling
and chamfering in one step

Shorter machining time*

  • Centering, pilot drilling and chamfering in one step
  • High machining speed

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

Long tool life

  • Integrated 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
  • High-performance coating protects tungsten carbide drill from wear
  • Robust solid carbide shank guarantees stable vibration-free machining
  • Longer tool life for the follow-up drill since it is guided in the pilot hole with coordinated tip angle. No risk of cutting edge breakage

High process reliability -
high productivtiy

  • Quick chip removal: extremely smooth helical flutes; digressive helical flutes, divided into two areas: a chip breakage area with a steep helix angle and chip removal area with a flat helix angle
  • Cylindrical guidance of the follow-up drilling prevents drifting
  • Simultaneous chamfering with 90° angle replaces countersink drill bit
  • No jamming of the follow-up drill due to diameter tolerances perfectly matched to all Mikron Tool deep-hole twist drill types such as CrazyDrill SST-Inox and CrazyDrill Flex SST-Inox

High degree of precision -
thanks to matched tolerances

  • High degree of position accuracy and straightness due to sturdy design
  • Highest degree of precision and straightness since the pilot drill creates a guide bore, thus guiding the follow-up drill ideally
  • No measurable transition from pilot hole size to follow-up deep hole size

Lower production costs*

  • Center drill/pilot drilling up to 3 x d and chamfer of 90° in one step
  • Short machining time
  • Long tool life and high reliability of the follow-up drill through matched tolerances and tip angles

 *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 drill CrazyDrill Pilot SST-Inox with matched diameter tolerance for subsequent twist drill types such as CrazyDrill SST-Inox and CrazyDrill Flex SST-Inox
  • Diameter range: drill sizes 0.3 mm – 2 mm (.012” – .078”)
  • Diameter increments: every 0.05 mm (.002”)
  • Drilling depth: up to 3 x d

Special characteristics

  • Centering, pilot drilling and chamfering possible in one processing step
  • Integrated 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
  • External coolant supply: also without internal cooling (with external cooling) CrazyDrill Pilot SST-Inox is an excellent pilot drill. Note: in case of external cooling reduce vc and f of 20%
  • Digressive helical flute (patented) for short chips and quick chip removal
  • High degree of precision for the follow-up drilling, no deviation in deep holes
  • Longer tool life for follow-up drills because of matched tolerance and tip angle
  • Pilot drill with 90° chamfer for simultaneous chamfering
  • Reinforced shaft diameter
  • Diameter measurement/increments matched to CrazyDrill twist drill types
  • 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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