CrazyDrill Alu, the best drill bit for aluminum and deep holes, is available in the diameter range from 0.4 mm to 3 mm (.016“ to .118“) and in the usable lengths of 5 x d and 10 x d.

In deeper holes (beyond 10 x d) or holes with a diameter greater than 3 mm (.118”), Mikron Tool recommends drills with through-tool cooling such as CrazyDrill Cool and CrazyDrill Cool XL.