Solid drill bit CrazyDrill Cool XL

multi-purposefor hardened steelfor steel

The coated small drill CrazyDrill Cool XL from Mikron Tool (in the diameter range of 1 mm to 6 mm / .039” to .236”, fractional inches available) is available in drilling lengths of 15, 20 and 30 x d for drilling diameters of 1 mm (.039”) and up and up to 40 x d for diameters of 2 mm (.078”) and up. Thanks to its newly developed geometry it meets the very challenging conditions of drilling a deep hole perfectly and is an ideal alternative to a gundrill. The outcome: an outstanding tungsten carbide drill for steel that produces short chips in all steel alloys. This is an essential requirement for smooth chip removal in drilling depths of up to 40 x d. The tool is designed so that holes up to the maximum depths can be produced in one step without chip removal, and this at the highest cutting speeds and feed rates. The through-coolant supply contributes to this and guarantees good cooling at the tip and hence outstanding tool life. Thanks to the special design of the CrazyDrill Cool XL, the deep-hole drill program from Mikron Tool in drill size diameters of 1 mm to 6 mm (.039” to .236”, fractional inches available) and for depths of up to 40 x d, the best drill bit for steel (alloyed and not alloyed, stainless), cast iron, aluminum and titanium produces short chips in all drilling stages. Chips do not coil up and the chip shape determines successful deep-hole drilling process. The cutting speed and feed rate ratio has to be selected so that short chips are produced. The two through-tool cooling channels, going all the way up to the drill tip, ensure constant cooling and simultaneously good chip removal. The tool generally reaches the full drilling depth in one single step