Generally speaking, you want to match the MIG wire thickness to the metal you are welding together. If you are doing a lot of dedicated sheetmetal work, you should stick to thinner wire such as 0. ...

Valve covers can make or break an engine’s ... However, by adding some metal to the old bracket, we can ... With a flap wheel, grind down the weld and clean up any sharp edges on the ...

For a strong weld, clean the metal with a degreaser. Advertisement - Continue Reading Below. 3 ... not across it. Remove any marks with a 60-grit zirconia flap disc. Finishing Tip.