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 metal, non-ferrous metal, aluminium, sheet metal, 1.5-3 mm (1/16Inch -1/8in ). Length: 92mm. Pitch: 24. Supplied in a pack of 5.