Ensure seamless, leak-free delivery of high-pressure fluid directly to your cutting edges using high-precision Coolant Tubes (coolant feed pipes). Engineered specifically for HSK toolholders, these critical components thread directly into the rear of the tool shank to bridge the fluid gap between the machine spindle drawbar and the tool body. Featuring premium integrated O-ring seals and a finely polished cylindrical stem, they facilitate smooth axial rotation and angular self-alignment inside the spindle, completely preventing pressure drop, coolant loss, and spindle internal contamination during high-speed through-spindle cooling.