This little gem is what I've wanted for a long time. I have no problem using oil drums but finding them with the head removed proved very difficult, with this tool this problem is no longer a problem. I use 55 gallon incinerator drums and they need to be replaced from time to time because they rust. With this tool there are no sparks to ignite the oil fumes in the drum, turning your soon to be burnt out new barrel into a bomb that can definitely kill you.