In the Cool Flash system - similar to the Cool Jet system - coolant bores are made in the tool holder with which the coolant is transported up to the face surface of the chuck. There is a pad placed on the face surface of the Cool Flash chuck which leaves a narrow circular gap leading up to the tool.
The coolant is collected in this chamber, creates high pressure and is distributed over the entire circumference of the tool shank. It flows out of this small reservoir like a closed housing directly along the tool shank. At the end of the shank area, the coolant is pressed into the T-slots, rinses them free and even at the highest speeds it reaches the cutting edges directly, without sputtering, where it can deploy its cooling effect.