Within minutes, a 70 cm deep hole is dug. And the best part: The loose earth lies on top of the drill, and only needs to be lifted out. A scale in 10 cm steps indicates the depth reached. Clear associated with a little effort, but you get quite liquid in the ground. With my spade was against it from 40 cm already cumbersome or impossible. Very rarely the drill gets stuck on a rock fragments or "rotate through" instead of going deeper. Then just start new and more ...
When I think of the alternatives that I first had in his sights:
1st hole sponsors:
(-) Not really digs, lifts rather loose soil out
(-) Too expensive
2. Gasoline auger from the hardware store to borrow:
(-) Unit must be transported in the garden anyway
(-) Rental costs about as much as the FISKARS drills
(+) Larger diameter possible
Conclusion: Buy recommendation for the FISKARS drill!
By the way: For smaller holes there are matching "blades" in 100 and 150 mm in diameter, which are changed quickly.