Don't Accept Substitutes!
This is Aitoh's high quality, super sharp tool that is a must for punching holes through hard-to-pierce surfaces. Attach the bit size of your choice and push into pages (or stack of cardstock, leather or other hard to punch material). A screwing motion will punch the bit through to create a clean hole. You can then use the hole to attach pages of your book together with wire, screws, grommets, etc.