I used the drills to make holes in concrete basement walls. They also rated to be used on brick, wood, porcelain floor tile, and marble. The drill bits have tungsten carbide Tip. Their hardness is 90 HRA hardness. I liked that the drill bits come in a nice plastic case.
If you need to create one or two holes, one could use a regular drill with a masonry drill bit. If you are doing a more serious job the best results with least amount of effort will come with a hammer drill or a rotary hammer drill. A standard drill is more difficult to use because the rotating action is less strong and take more effort and time to break the concrete. The hammering action of a hammer drill will chisel away the concrete while the rotary action drills the hole. This creates a nice even hole.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★
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