In this tutorial, we learn how to use the Stanley utility knife. This is a razor straight edge knife that has a very sharp point on it. The little slices in the bottom will help it go back into place and will help you sharpen it when it becomes dull. You can break off the points as well when they become dull so you have a brand new sharp one. The tool in the back has a storage area for another blade. To take this out, you just slide out the old one and insert the new one in the same exact way!