• 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.

• 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

• 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 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

• 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.

• 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 0.2 mm – 2 mm (.008” – .079”, fractional inches available)
• Diameter increments: every 0.05 mm (.002”)
• Drilling depth: up to 3 x d

• 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)