CrazyDrill Cool – the small drill
with through-tool cooling
for drilling deep holes
Short machining time
- Maximum drilling speed
- No finishing thanks to the high surface quality
- Drill in one step or in few chip removal cycles (pecks)
Excellent tool life
- Version CrazyDrill Cool CS with high-performance coating for thermal protection as well as wear protection for drilling in steels, alloyed steels and titanium
- Version CrazyDrill Cool CA without coating, extremely smooth flutes, sharp and with cutting-edge treatment for high stability and tool life for aluminum, brass and bronze
- Two internal cooling channels provide for optimal cooling at the tip
- Power chamber in the shaft up to drill size diameter of 2.95 mm (.116”)
- Sufficiently large coolant flow even at lower pressure
- Greater coolant flow at identical pressure
High process reliability
- Special flute form for optimized chip removal
- Clearly defined drilling process
- Thanks to the power chamber, a good lubricating and cooling effect is achieved even at a lower pressure
Highest precision
- Highest alignment accuracy
- High surface quality and diameter accuracy
- High degree of perpendicularity and hole roundness
- Coordinated drilling program (tip angle and diameter tolerance) with two types of drill bits CrazyDrill Pilot or CrazyDrill Crosspilot: centering and pilot drilling in one step, hence high-precision guidance of follow-up drilling using a long drill
Low production costs /
High cost-effectiveness
- Quicker drilling process
- Excellent tool life
- High process reliability
- Regrinding drills from drill size diameter of 1.4 mm (.055”): The drill with through-tool cooling can be reground and recoated. With this tool costs are being reduced
- Can replace expensive deep-hole drilling (for example with gun drilling machine)
- No follow up machine finishing thanks to excellent hole quality
Coordinated and complete drilling program
- As perfect hole preparation for long drills and high-precision position accuracy of the follow-up drilling (no deviation), Mikron Tool recommends the use of the following boring tools examples: pilot drill/centering tool CrazyDrill Pilot; or for a hole on an inclined surface with an angle of up to 60° CrazyDrill Crosspilot
- Diameter range 0.75 mm – 6 mm (.030” - .236”, coated version with fractional inches available), drilling depths up to 6 x d / 10 x d / 15 x d
- Increments: up to 4 mm (.157”) diameter every 0.05 mm (.002”), from 4 mm (.157”) diameter every 0.10 mm (.004”)
- Tip angle 140°, matched with the CrazyDrill pilot drill program
Special characteristics
- Drill with through-tool cooling in small diameters
- Maximum drilling speed due to high cooling capacity
- Excellent drilling precision
- Minimum chip removal
- Latest-generation solid tungsten carbide
- Coated or uncoated
- Suitable for difficult-to-machine materials, in the uncoated version also excellent when used as an aluminum drill
- Can replace expensive deep-hole drilling (gundrill)
- Can be reground and recoated; drilling performance of a re-sharpened CrazyDrill Cool 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)