If you're like me, you've accumulated a bunch of drill bits over the years and they're all in one container and some of the sizes are worn away or hard to read. When you need an exact correct size, this gauge comes in handy. I have one Velcroed to the inside lid of my bit box. Let me know when you will come get it and I'll leave it by the street number sign at 24 Schooner Dr., Harwich. Please, no questions or special requests.