I....LOVE.....THESE....BLADES.  Add these to any reciprocating saw, and suddenly you can do things with your saw you never could before.  I've used these blades to cut everything from bolts to pine stumps.  The length allows you to use your saw at angles and distances that you otherwise couldn't with the tiny blades that most saws come with.  If you don't have a set of these for your saw...you should.  You'll be amazed at what they can do.