I forgot about this thread but I'll take a moment to rant. I wish companies would make more bi-metal blades and stop telling me carbon steel is best for wood, they just don't last. I bought a carbide tipped blade for the recip saw and chainsaw but have not used them yet. The only carbide tip I could find for the recip saw was a finer tpi than I would like and they call it a concrete blade. Image if table saw blade companies said here you go all we have are high carbon table saw blades, that's 1965 all over again.