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Hammer Drill / Vacuum (Battery)

#1
Does anyone have any recommendations of good battery operated Hammer Drill and Vacuum?

I bought a $700 hilti that ate itself (sparks coming out) when drilling into a 40 year old slab.
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#2
Your Hilti was battery powered? I find it difficult to imagine a battery powered one able to perform lots of holes without over heating.

I guess battery powered would be great if out on a large new slab or remodel where power is not close by. How bout a small generator on wheels?
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#3
On new construction a battery powered hammer drill is just fine. Drills enough holes no problem. However when I hit an old slab it overheated. Mine is an old ni-cad type battery. The Hilti people have told me the new Lithium Ion drills are far superior and there is no reason to have a cord any more.

Still haven't found a battery powered vacuum.
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#4
Here's some advice that I hope doesn't get me in hot water....

Use a can of compressed air to blow the dust out of the hole.
JD Grafton
Concrete Answers for Flooring Problems
[email protected]
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#5
DeWalt makes a corded/cordless vacuum. I saw it in home depot.
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#6
http://www.amazon.com/DEWALT-DC515K-Gallon-18-Volt-Cordless/dp/B000BAURXY/ref=wl_it_dp_o?ie=UTF8&coliid=I2D7KTJEA3HD05&colid=KNTUIRJM9419

Ni-Cad. The moment that goes Li-Ion I am getting one!
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#7
Found a better one for my car: http://www.amazon.com/dp/B001AHMQ90/ref=pe_109300_17054560_pe_epc_d7
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#8
That one looks great! And not very expensive either!

I hated lugging a big vac around and trying to find power in a new building is impossible. Especially on a floor where nobody is working yet and temp power may be several hundred feet away.
JD Grafton
Concrete Answers for Flooring Problems
[email protected]
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#9
Ive been using Cordless Milwaukee equipment for the last year or so and have had a lot of luck with them...V28 Powered Grinder, Vac and Hammer Drill.
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#10
You use an angle grinder for CaCl tests? That's not enough to get all the carbonation off.
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