The tool worked well. I spent several days trying to loosen a crank bolt on my 2001 Toyota Tundra and within minutes of using this tool the bolt was loose. This helped reinstall the screw and hold the alignment marks in place. At first I was wondering if it was worth investing in this tool as I would probably only use it once. After using it I want to save myself a lot of time and frustration and buy the tool before I start this project. Good value for money, well made and a must have for the mechanic who refuses to pay auto repair shops big bucks for this type of project.