On 2009-05-03, MiamiCuse wrote:

I used the same sawzall and cut through copper and EMT electrical
conduits like knife through butter. But this CI pipe I am not
making any progress.

I have had good success cutting new cast iron DWV using a Lennox
reciprocating saw blade marked 800RG, "Medium Carbide Grit Tile, Clay
& Pipe". Took me a minute or two to cut through 2" CI with low to
moderate pressure. Or you could try Lennox's new diamond
reciprocating saw blade, which is supposed to work even better,
although I've not tried it.

Cheers, Wayne