Irwin Jigsaw Metal Cutting Blades have fully hardened high speed steel for use in metal, aluminum, and no-ferrous metal. HSS milled teeth provide longer life and fast cuts in metal.Fast and even cuts in thin and thick metal. T Shank for AEG, Bosch, DEWALT and Hitachi Jigsaws. Straight cuts in thin metal, non-ferrous metal, sheet metal, aluminium 0.2-1 mm (1/64Inch -3/64in).Length: 92mm. Pitch: 36. Supplied in a pack of 5.