I have a Dewalt 18 v cordless/hammer drill that works fine for block and
small holes up to 3/8"
I have a Milwaukee 1/2" corded drill that works well up to 5/8" holes
I have a Hilti TE-52 ($$$$$$) that will cut holes up to 4 inch in what ever.
I have used the hilti in concrete slabs, footings, stems and even
pre-stressed. With the diamond bits it will even cut through rebar.
Decide how much you plan on using the tool. No sense in paying thousands for
an tool that you are going to use occasionally. If you just have a project
to do renting is an good idea.
I would say stay away from B&D. My son bought a new B&D hammer drill to
make four holes in his garage floor. First drill burned up (literally)
after just 1 1/2 holes. The second one didn't work at all.
Unless it's the Black & Decker Professional line, in which case the B&D
and DeWalt are almost certainly the same tool, then stay away from the B&D.
I've not used any DeWalt hammer drills, but they're probably fine. My
hammer drill is this Bosch:
and it's a pleasure to use; very smooth and capable.
Hammer drills are quite loud. Use ear protection.
Bo Williams - firstname.lastname@example.org
My B&D drill broke after an hour of use - the drill is junk. I had three
12.5" Dewalt planers and all had the same defect - its over rated and would
not buy Dewalt again.
If money is no object it would be a Hilti or a Milwaukee hammer drill.
I have a cheap $60 Harbor Freight 1" SDS hammer drill for over a year and
its holding up well. It could bust through rocks and 4" concrete slab -
perfect for occasional use. Other people have problems with the chuck, its
not broken but a little tricky to insert the SDS bits.
I've got an old Hilti TE-52............it's an awesome tool! Got it after I
gave up on a midsized Bosch. The Hilti drills about 5x faster. I use it for
9/16 up to 1 1/4"
Also have a Milwaukee "Falcon" hammer drill. works great for smaller holes (up
to 3/4") got it on Ebay
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