I had two big holes get in a concrete floor and had intended to buy me an expensive professional drills for the two- to fivefold price. That thing cost me including shipping and 10 in conjunction with the Hilti from a friend I can do the job nicely. I do not think that the drill would have a third or fourth hole also endured.
Buy rating on all the time as I just want to drill 1-2 holes; all others should look for a better quality.