Hello guys, first post here so don't get mad if I have place it in the wrong area. Going through one of my lessons earlier I was learning about the limits and fits of holes and shafts, determining the tolerances of certain objects kind of stuff. It was also briefly mentioned that you could determine the limits of keyways by using a similar process, this was not gone into in great detail so I do not really understand it a whole lot. What is the process for determining limits of keyways if you just know the width of it? I am sorry if I have been a little vague, but I was not sure how else to explain it. Thanks, Thrag.