Nice set of tension wrenches. This set covers enough common thicknesses to be good in almost every keyway. The L shaped wrench is a medium thickness making it useful in 80% of common American house locks and padlocks. This is my 'go to' wrench. Its twisted so it has some flex to it making it easy to maintain a light tension. I don't use the Z shaped wrenches very often, but bought the set for the L wrench. I got the 5 piece set here for the same money that just the L wrench would have cost and got it with free shipping!

Lools good and are just the right size for the job. Just wish there were more and a manual would be a good idea. Thank you