I often use a construction stapler. For example, fasten a plastic film to the inner wall of the formwork. This is to save the boards for their subsequent use, and the concrete in the film does not dry out, it gets better.
So, the moment comes when you need to remove these brackets clogged by the stapler. You can poke around with a knife and twist with pliers. but nevertheless, it’s more accurate and clever with such an instrument, damn-te-bey-as-called. Something like a scraper.
An interesting mechanism, witty. We start the tip of the tool under the bracket, and when we start pulling out, a special tongue presses the bracket to the tip. And then she did not dodge. You pick with a knife - most often one side of the bracket will pop out, and the second holds, you have to take pliers. And here the bracket, being clamped in the instrument, is forced to gracefully get from both ends and obediently remain in the instrument.
In general, I liked this tool, very convenient.