DEWALT Masonry Drill Bit Set, Percussion, 4-Piece (DW5204)

Ordered May 2013. Made in Germany, very good quality. I needed to drill 12 total 3/8" holes in my paving stones to anchor a gazebo. Started with the smallest bit and worked up to the biggest. Went way smoother and faster than I expected. I ordered two sets just in case but did not even open the second set. The last hole went just as smooth as the first so I would expect a good life time for the difficult application. I used a super cheapo Harbour Freight rotohammer to the tune of $35 because it would cost the same to rent one and now I have one in the tool chest for applications like this. I do not do stuff like this enough to justify buying a heavy duty quality rotohammer. These bits worked great but I do not think I would get the same results if I was using my regular non hammer drill.

Super llego completo a mi pareja le gusto ahora falta que mi pareja lo use

I bought this item to drill through my concrete walls in the basement. I am using a high power dewalt cordless drill and it was providing good results until I broke one of the bits. Not necessarily due to the quality of the product but could be due to the angle I had to drill into. For that reason I only gave it 4 stars.

Installing a new patio in my backyard and had 3 concrete slabs to remove. They were far too heavy and thick to pick up in one piece Enter this concrete chisel. Technique used: 1) Drill pilot holes into concrete as deep as I could with the drill bits and a cordless dewalt hammer drill 2) Used Chisel (http://www.amazon.com/gp/product/B000NIBFT4/ref=cm_cr_mts_prod_img) and a sledge hammer to then break off pieces of concrete 3) used angle grinder to cut through the rebar The only hammer drill I had was a cordless Dewalt. i was concerned when purchasing these that the cordless drill would not be able to provide enough omph, but I was totally wrong. The concrete was a mix of stone and concrete. Two of the concrete pieces had rebar inside. These drill bits chomped through the concrete easily and showed no sign of giving up. Several times I had to stop work and let the drill bits cool down as there was smoke coming from the holes, but after a couple of minutes they were ready to go again. Another great dewalt product. All in all, great product for a great price. See pictures attached

These drill bits have been great for masonry work. After using them several times, they're still holding up really well. They also work perfectly for drilling holes under pots (just spray a bit of water).

It's like I had been living in a cave before using this. They went through my concrete wall like (relatively) nothing. I could feel the bit murdering the concrete into a dusty gravel, even when it came across the hardest sections where it would otherwise have seemed stuck. I had no idea my humble drill was capable of taking down concrete. And I had no idea how much specified drill bits can make the difference. I'm 20 years old and I'm very new to this world. But after trying this, I'm massively excited to start collecting all sorts of bits and discover what else there is out there. Regarding Quality: These things feel like no other regular bits. The metal used is much stronger, and you can tell right out of the box just by the interesting finish. Holding this tool in your hand really merits some respect. It feels strong and characteristic like a bullet. The spirals have a special recognizable pattern and the metal gives off its own characteristic smell. And they're a little yellow-ish. Telling these apart in a large toolkit will be a snap.

I bought this bit set not to place fasteners into concrete, but to drill drainage holes in the bottom of broken or discarded coffee mugs for the wife's plant nursery. Until I took up this curious habit, I had NO idea that enameled ceramic kitchenware could vary between soft-as-terra-cotta-clay and diamond-drill-dulling imperviousness. So far, the score is two wimpy cups shattered into fragments and 14 sturdier units successfully aerated. Of the lot of them, the Starbucks mega-mug was the most challenging, requiring five solid minutes of dedicated effort with serious bluing of the tip of the DeWalt bit in use. But it got the job done.

These are designed to be used in a drill with a hammer function. That is not the same as an impact driver. I needed these to drill 3/8" about 40 holes for concrete anchors. Worked great, bit still looks pretty good too. Keep solid pressure down on the bit with a hammer drill and you'll drill a 3-4" whole in a matter of seconds. These work by actually chiseling out the whole basically. The drill flutes are actually just there to remove the broken up masonry.