Specially developed for cutting insulation material.Mineral wool.EPS - expanded polystyrene, cellular plastic up to 75 mm.XPS - extruded polystyrene, for example styrofoam, up to 75 mm.Handsaw has a wave-formed sharpened edge (WT teething) that allows it to slice through the material creating minimal waste.Should be stored in sleeve for rust protection.Comfortable two-component handle