√ Multi-function - Set multi function all in one,cooling,lubrication and blowing the metal chips, gas processing chips are blown away, working safer. √ Great Value - Save 60-80% lubricants compared with the oldest lubrication tube. √ Easy Operation - Engraving machine spray cooling,Special design,direction of rotation,easy to operate. √ Long-term Use - Standard fixing device,fine spray port, long life. Cooling stone/metal/ceramic tile engraving machine. √ Widely Used - Great for CNC Lathe Milling Drill Machine. Usually used in lathe, milling, grinding, drilling, boring, and tapping processing.