Oscillating Tool Blades

One of my purchases included 2 DeWalt blades and they don't have part numbers or their intended use marked on them.  So I'm hoping I can get the PN's for these blades and their intended use.  

Blade 1 has "BI-Metal" on it and the width of the cutting end is ~1&3/16" or 3cm.
Blade 2 has HCS on it and the width of the cutting end is also 3cm or 1 3/16".  I'd appreciate it

Lastly, if by any chance there is a list of the DeWalt Oscillating multi-tool blades and the list includes the P/N's and intended use of the blades I'd appreciate it if you'd point me towards where that information is.  Many thanks