3 of 3 people found the following review helpful:
5.0 out of 5 stars
stiff competition, August 11, 2004
This review is from: DEWALT DW4860 12-Inch 6 TPI Demolition Bi-Metal Reciprocating Saw Blade, 5-Pack (Tools & Home Improvement)
I build houses out of autoclaved aerated concrete (AAC), see www.safecrete.com for more on them. AAC is a very soft concrete product that is very workable. Any tool that will cut wood will cut through AAC many times faster. I use a sawzall a lot to cut electrical and plumbing chases and outlets. The short stroke of a recipricating saw creates much less dust than a circular saw or router.
There are two reasons why these demolition blades work best for me. They are stiff. A thiner blade tends to curve inside the block when cutting. They have widely spaced teeth. AAC cuts so easy excavating the cut material is more of a concern. These larger wider spaced teeth offer better excavation of dust.
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