NEVER.. use side cutters when taking out or putting in contact tips on your mig torch ( especially when hot). When you grab the contact tip with side cutters and turn the tip, you are actually cutting into the...
NEVER.. spray lubricant such as Innox, CRC,WD40 ETC on your mig wire, It might give it a protective coating but will give you wire feed problems at the drive rolls by slipping and gum up inside your liner, The...