The Arrow Multi-Material Variety Pack comes with three bi-metal, high-carbon steel blades in 1 ¼″, 1 ⁵⁄₁₆″, and 2 ½″. The universal fit makes it compatible with popular oscillating tools such as Dremel®, Milwaukee®, DeWalt®, and more.
We have a multitool that we use blades like this for a lot of varying tasks. It is super handy to have around for miscellaneous jobs and having the ease of switching out differing blades for differing purposes makes this that much better too! I like that there are varying sizes and purposes if you buy all the blades.