There are 3 service kits from Topeak, but they only offer replacement in case of loss/defect of the chain tool. In and of itself, I am satisfied with Topeak products, but unfortunately I have not come to know the company as accommodating. When the rubber belt of a tool I had hardly used broke due to brittleness, there was neither a replacement part nor a good offer to get a new tool. So I wouldn't get my hopes up too high here either.