Deep drilling in stainless steel starting from diameter 1 mm

CrazyDrill Cool SST-Inox is a carbide cutting tool for deep holes in stainless steel, heat resistant and CrCo alloys. Its special feature: drilling in one step – no pecking – with high speed and feed up to the total depth. These two factors are the primarily responsible:

A new geometry with chip breaking shape in the front area and a rear chip flute area with extended flute shape to ensure perfect chip removal.  

Two helicoidal cooling channels in a drop shape guarantee a constant cooling. They enable up to 4 times more coolant flow compared to circular cross section channels. The advantage is an increased tool life because the overheating of the cutting edges is avoided right from the beginning. For small diameters below 3 mm an additional “powerchamber” provides sufficient coolant flow to the twisted cooling channels. This powerful cooling helps with an easier chip breaking and flushing out of the spiral flutes.

The tools are available in diameters from 1 to 6 mm and in different usable lengths of 6 x d / 15x d / 20 x d and new (presented as a worldwide new product) in long versions of 30 x d and 40 x d.