About Reciprocating Saws. This is more commonly known as the sawz-all. They are more commonly seen in plug in variety because it draws a lot of power. The blades are interchangeable. You can cut metal, wood, plastic, pretty much anything. It is useful for cutting away pieces of wall. It has a variable speed trigger for slow or rapid cutting. Become familiar with the balance and power of the saw. The difference between a jigsaw and a reciprocating saw is that the jigsaw is smaller and more balance for finer cutting.