The five pairs of saw blades will make happy every DIY enthusiast in his or her work with wood & metal. The three pairs of saw blades are rather intended for finer work - the slower cutting prevents the material from being rough. There is no problem in cutting plastics or metals. One pair of long saw blades is intended for quick cutting of metallic materials, while the other may be used even for cutting metal profiles. However, care must be taken to cut the metal only at low revs of the jigsaw to prevent overheating of the saw blade. The Fieldmann saw blades are fully compatible with other jig saws with the "T" chucks.