This set came with the new case as pictured.
yes they do.
I can’t think for any reason that it won’t fit. The package says reciprocating saw blades. reciprocating saws don’t have to match with blades.
To cut metal use the blades that have the teeth closest to each other. The more teeth the better cut.
Yes if used carefully
Work with all standard reciprocating saws
At minimum the 13 that came with purchase...it appears as though it would hold about 5-6 more
They fit our Ryobi just fine!
The set consists of two nine inch 5 tpi wood cutting blades, two six inch 7 tpi metal cutting blades, and one nine inch 7 tpi metal cutting blade. All are carbide blades. I've only used the wood blade, but it is still just as good at cutting as when it was new and I'm cutting at ground level and the blade does get in the dirt occasionally. That blade holds up.