Multi-blade saws allow pieces of wood to be cut in more than one location at the same time. Width cutting, which is often referred to as ripping, is combined with longitudinal cutting to make the first stage of wood processing faster and more efficient.
A multi-blade saw consists of two or more circular blades that are mounted on a saw shaft. The distance between the blades in a multi rip saw is set before the wood cutting begins with rings that are pushed against the shaft. This allows the same machine to cut wood of varying sizes quickly and accurately.