Review on Ultimate Precision: Discover the SHIMANO TL-CN28 Chain Cutter by Arnold Carrigan

With this thing I can cut a 10 speed chain in about 1 minute and put it back together with a new pin. It locks the chain where you need it, making it easy to set up for the press, and it has plenty of leverage so the old pin can pop out easily. It also has the foresight to keep the old needle so it doesn't clutter up your store. And to top it off, you can snap off a new needle through the hole under the punch and again not drop the broken tip of the needle on the ground.