Rotary punch

This tool is used to punch holes into leather. It has a rotating 'punch' at one end and two handles at the other. The "punch" selector has six or eight pre-sized punches (depending on the style) mounted on a wheel. Select the size of punch you want to use and set it on the wheel. Put the wheel over where you want the hole in the leather and squeeze the handles together.

The punches get dull after a while, which will make this tool hard to use. The punches should be sharpened by a professional. Different models of leather punches may come with extra features, such as removable punches, which may have more intricate designs (for more interesting holes in your leather). If your hands tire easily, you may want to coerce -- er, convince someone to help you out with this tool.