Before you do this, make damn sure the old contents of the drum were not flammable. Vapors can be just as explosive as the former contents, and guys have gotten killed cutting or drilling into "empty" drums that exploded. A guy in Pennsylvania got killed by a burn barrel last week. There was another incident in Iowa that killed a man who was welding on top of a barrel, using it as a workbench. Filling the drum with water before cutting into it can displace explosive vapors, if done correctly.
Muito bom maravilhoso parabéns pra você vou tentar fazer um pra mim simplesmente demais Deus te abençoe sempre e sua família também em nome de Jesus Cristo