MIG Welding

MIG stands for metal in gas. A coil of wire is fed through an eyelet which also supplies a high current to continuously melt it when it comes into contact with the grounded metal object to weld. The argon gas prevents the molten metal from oxidising. RS was fixing a wrench which he broke while repairing the heating system. He also very kindly sharpened and slightly fixed my penknife which is sharp enough to shave with, should I feel the need to.