While it cuts plaster, bricks, and concrete very well, the central drill bit that it has inside comes out easily, no matter how tight you screw it. Eventually, from the excessive tightening to make it stay in place, the screw broke inside and the drill continued to come out. Waste of money and disappointment...

I bought the product a month ago for drilling holes for sockets in a new house. It opens holes in bricks with great ease and with a little more effort in concrete. After extensive use throughout the house, it shows slight wear (it no longer opens holes as easily).
Very good value for money. I recommend it for amateur use.