Do You Know Which Plumbing Tool Solves Each Pipe Problem?Share:FacebookPinterestTwitterMailWhat tool is best to use to tighten compression fittings, offering good leverage?100% Correct Incorrect Open-end wrenches are ideal for nuts and bolts where a socket wrench won't fit. What tool is best to use to tighten compression fittings, offering good leverage? Allen Wrench Socket Wrench Open-End Wrench Adjustable Wrench 100%