1 x 3104 - Jigsaw Blade Wood CleanCut: Ideal for straight cuts. High-speed, clean cuts in hardwoods, softwoods and chipboard 1 x 3106 - Jigsaw Blade Wood FastCut: For fast, rough cuts in hardwoods, softwoods and plastic 1 x 3113 - Jigsaw Blade Metal Thick: For thicker metals. Straight cuts in metals, non-ferrous metal and aluminium