CNC coolant and its maintenance are vital for the proper operation of your CNC machine. It is comprised of water and a variety of specially formulated chemical additives that improve a machine’s ability to cut. The proper application of coolant during a cut encourages greater thermal stability by lubricating the cutting tool, reducing the overall heat built up at the cutting edge. This largely minimizes tool wear by improving the cutting tool’s chip evacuation capabilities and ultimately results in a workpiece that is less prone to thermal expansion and discoloration.