Cooling water flow rate 7.5 l/min, connection thread G3 4", 6.5 kW, laser type Q-switch pulsed milling body, laser medium ND: YAG, wavelength 1064 nm, shield diameter 1.2 to 1.3 mm, steel divergence 5 multimode, pulse duration CW/90 NS, max. output power 65 W, shield thickness 0.12 mm