@jlccnc: What is CNC coolant used for? Think it’s just for cleaning? 3 key functions you should know.💡 Get a quick breakdown in this video. Follow JLCCNC for more CNC machining tips and insights. #jlccnc #cnc #cncmachining #manufacturing #engineeringtips #prototyping #toollife #cncparts #cnccoolant #coolantsystem #cncknowledge #cncfaq