ITEM NAME:Mist Coolant Lubrication Cool Sprayer For 8mm Air Mach Pipe Milling N7H3 La F9Q8 Description&Preview.Mist coolant spray system. 1 x Mist Coolant Spray System. - Save 60-80% lubricants compared with the oldest lubrication tube. Air Pipe Interface Size: 8mm / 0.31in. Air Hose Length: 150cm / 49.21in.