Brian explains that there is only one blade that you need for demolition. Watch the show to learn about demolition blades for reciprocating saws.
Demolition blades for reciprocating saws
A reciprocating saw is not a tool for fine detail work. It’s used for quick cuts and for demolition–usually demolition. Don’t use it for fine carpentry.
The Axe, and similar demolition blades are thicker and heavier than cheaper blades. They wont bend as easily, will last longer and cut faster through wood embedded with nails.