In the original plastic packaging can be the hole saw not keep long, especially since some tearing when opened. Decided to give the desired diameter, the rest loose rumfliegend on the table ... by turning movement can remove the individual saw blades and hook into it again. Otherwise it is not backed up. In our opinion, very unstable, because the saw blade but out slips back easily if you are not careful when clamping in the drill head.
Conclusion:
We think: if it has to be cheap for only occasionally, then it is ok. For frequent use be worth higher quality with storage box.
