In this set there are 6 Bosch jigsaw blades for wood / plastic and metal for 4 (with T or Einnocken shank), housed in a reclosable plastic box. 1 x T118B for medium-thick metal plates 1 x T118A for thin sheet metal (1-3 mm) 1 x T118G for very thin metal sheets 1 x T218A for curved cuts in thin sheet metal 2 x T111C for wood and plastic, thick material 2 x T119B for softwood, up to 15mm 2 x T119BO for wood and plastic, thin material The leaves are tough, keep a fairly rough treatment from without prejudice and deliver a clean cut. With this set you have ever seen a solid basic equipment for all cases who only occasionally saw what must that makes nothing wrong. Otherwise, you can make the appropriate choice of a saw blade, a proper science.