The information that a Schraubkranzabzieher also cassettes can be peeled off easily, has been confirmed, it is therefore suitable for both. But not vice versa! A dedicated Cassette to be too short for Schraubzahnkränze! (And with pins for hollow axle anyway).
The workmanship is good. No sharp edges or similar
Fits really ideal in the respective counter-parts, no rework required.
This part holds the forces that were necessary when unscrewing the (my) sprocket, stand, and will not be drawn into the affect, neither the structure nor where the 24-he is placed keys. I had with me the lever arm with a hollow steel table leg artificially extend to release the gear from his stupor. Light Lackabschürfungen to the exposed areas, the puller now, but nothing more. So definitely not a one-way part.
A freewheel cassette went with the puller with me almost without effort from (a chain whip provided!).
My personal opinion - strong buy recommendation. Even if the thing on average every leap year to be used (definitely more to clean than Cassette to the pinion), I do not regret to have bought something "g'scheites".
