Brand new and high quality Engraving machine spray cooling,Special design,direction of rotation,easy to operate. Standard fixing device,fine spray port, long life. Cooling stone/metal/ceramic tile engraving machine. For CNC Lathe Milling Drill Machine. Fit for 8mm air pipe MATERIALS ; PLASTIC METAL BRASS & ANODIZED ALUMINUM Size:36cm(L) /14.17inch , small hose about 1m.