If you don't want to buy one then talk to a few of the gunsmiths in your area and see if they will rent it to you. You may have to prove that you know how to use it before he will rent it to you because "back-turning" a reamer just once wil shorten its life by a lot. Using the wrong lube can burn it if you are using it in a lathe or power tool. Follow his rules and treat it like you will have to replace it with gold and you will gain a friend. He will be easier to rent tools from in the future too.
