Yesterday, I talked about the basic types of knitting needles: straight, circular, and double pointed. Today I have a “secret ninja” fourth type to mention – although to be fair, it’s really just a variation on circular needles.
If you recall, circular needles are shorter needles connected to each other by a thin, flexible cord. Interchangeable needles are basically the same, but with one twist… they come apart. When you buy an interchangeable needle set, you get a wide variety of needle sizes (diameters), but instead of having a stopper on the end, they have a screw. The set also comes with a selection of cords, and each cord has the inverse screw to the needles on its ends. In this way, you can combine whichever needle size you need (in an interchangeable set, they’re called “tips”) with the length of cord you need. This system allows you to have a huge variety of circular needles without having an unlimited supply that you have to store and keep track of. It’s a very efficient way of having the needles you need for practically any project.