This is a tool that has more than meets the eye! The 0.08mm carbon fiber blade is perfect for streaking, engraving, and scraping. But what takes the tool from great to wonderful, is the thought put into the grip. The specially designed blue grip handles like a pencil and special care was taken to ensure that light won't reflect off it, ensuring you can always see what you are working on. It measures about 12.3cm. This is the tool for people who mean business!