Using the CT - 15 is easy. First, place your bicycle chain on the triple - wide floating shelf to get it centered and secure. Then, use the tool to drive the rivets in or out as needed. If you're working with a Campagnolo 11 to 13 - speed chain, you can use the included removable anvil for peening. Keep in mind, always make sure the chain is properly positioned before applying force. When not in use, store the tool in a dry place. You can check the spare driving pins regularly and replace them when they show signs of wear. And if the tool ever has an issue, it's fully rebuildable, so you can keep it in good working order for a long time.