4 times crooked ...

Unfortunately, there is for SDS-Quick not very much "good" range of drills. Much scrap in circulation.
Unfortunately, this set is (Made in China) quality is not good.
For me, every 4 drifter are slightly bent. Thus, the drilling of a clever hole is almost impossible.
Taking the drills d = 6mm, the hole something to 7mm ...

For small items where the size of the hole is perhaps not so important, as it may still be OK.
In general I would not use this drill to fasten my shelf with plugs in the wall.
This is certainly wrong. Here I can not pronounce a buy recommendation!