Sorry for another thread on this subject, but I just did my first job
with this tool and wanted to throw my 2 cents worth out there.
I got the old fixed-speed version (for $35--I didn't win the
lowest-price-paid prize here, but still pretty cheap). Just finished an
install of a ventilation fan in the ceiling of a bathroom. I used the HF
tool to cut three holes in the wall: a large on in the ceiling for the
fan, a hole in the corner to route wiring through, and to open up the
existing switchbox hole (and to cut out the old switchbox).
I have to say this was the best $35 I've ever spent on a tool. The thing
worked like a champ. When I bought it, I got both the diamond and the
carbide blades with it, which turned out to be exactly what I needed to
finish this job.
The cuts were done in three stages. I first used the carbide blade to
cut through the plaster. This thing basically went through it like
butter, although it needed a lot of force applied to the tool.
Then, since the plaster had wire screen embedded in it, I used the
diamond blade to cut through the wire. Then I used the toothed wood/soft
metal blade to cut through the lath (it even ate through some of the
I was afraid that the blades would wear out quickly, but they made it
through all of this cutting with lots of life left to spare.
The tool does get pretty hot after being pushed hard (and one time I got
a hot piece of metal flung onto my cheek as I cut through the wire with
the diamond blade), so it's best to grip it by the rubber.
The other thing I noticed, which would apply to any of these vibrating
tools, is that it's hard to cut something that's not well secured, like
a loose piece of lath; you can see it just vibrating with the tool, and
not being cut.
So in summary I have to say that this tool made this job about 200%
easier than it would have been without it. And for what I used it for, I
see absolutely no need for variable speed.
You were wrong, and I'm man enough to admit it.
- a Usenet "apology"
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