A good rental center has a stock of professional grade tools, which means you can get the job done more easily with more professional results. But when should you consider purchasing a tool instead of renting?
If your project is refinishing your wood floors, jack-hammering concrete or setting a dozen posts for a new fence, you'll probably want to consider renting those tools. First, it's going to be a while before you need them again and they're very expensive to purchase. Storage can also be a problem. On the other hand, if you need to bore a few holes, cut some wood, or tile two bathrooms and a kitchen, you might want to consider purchasing the tool.
The more general use the tool is and the more times you are going to use it, the stronger the case for a purchase.
But when you decided to rent, keep in mind that not all tool centers are created equal. Be sure to choose one whose tools are clean and in good repair. If you haven't operated the tool or machinery you're about to rent, ask for hands-on instructions. And finally, make sure to pick up the supplies or accessories that you'll need.