They make the construction materials look like Styrofoam. Of course, always with a drill from the same company.

The most useless thing I have bought in a drill! Maybe I got a bad batch as others say the best about them.
Some of the five are crooked and with very little use they became very crooked (specifically the number 5 more, but also the number 4).
Not to mention that it doesn't drill easily. Chinese ones from Amtech have turned out slightly better for me, of course, also the B&D ones, not to mention the Bosch ones that are the top (but expensive). Even with Chinese ones, this hasn't happened to me.
I wouldn't buy them again as at this price, both Benmann and simply Bosch are in play.

For household use in plastering and wall construction, it is excellent.
Update:
In drilling for tiles, it managed just fine

Excellent quality, at an excellent price! It's not worth getting a no-name brand, especially if they are used for amateur use, as these specific ones will have a very long lifespan. They were tested on a stone wall, where they easily drilled 10mm holes.