I assume his is in plastic? Ideally you would want the hole to be exactly the same size or just a bit smaller for a snug fit (maybe 0.0005-0.001"). Obviously you are not going to get that precision with a laser so you need to either make the hole too big and fill it with glue or something or you will have to make it to small and use a file or something to fit it properly. If you really cared you could have someone with a milling machine bore the hole to the proper size. More details would be helpful. Whats the material, whats it for, etc.