Yes, the small chain tools are murder on your hands. They can do the job if your pain threshhold is high enough, but a larger tool is much easier. I currently use the Spin Doctor? Universal Chain Tool (http://www.performancebike.com/shop/...tegory_ID=4204) or something similar. It's not real large, but the edges are rounded and it's long where it needs to be for leverage. Costs about $9. If you want the real Cadillac, get the Park CT-3 Chain Tool for about $30.