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
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
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)
