Jigsaw blades come in lots of shapes and sizes, with important variations in length, thickness and the density of jagged teeth on the blade, which is measured in teeth-per-inch (TPI).

Also, how much do Ryobi's blades cost in comparison to other jigsaw blades? Ryobi advertises its blades as having a universal shank, meaning they should fit snugly in most other brands of saw.