I am very disappointed with this tool. It wasn't as sharp as I thought it would be, but it fell off with the handle. With a different type of tool, the ergonomic handles would have been great, but now I understand that with diagonal cutters, it's important to slide your hand over the handles. I stuck with these pens and had open blisters before I finished my project. The slightly longer handle gave me some much-needed leverage to work on tougher parts, but the tool wasn't quite as sharp as some