In the absence of an electric drill, to remove the core-pulling rivet, the following methods can be used:

1. Cut the tail of the core-pulling rivet with diagonal pliers.

2. Wash the residual core pulling with a small nail (similar to the diameter of the rivet core pulling), which needs to be washed from the front.

3. Then punch out the cut rivet from the back.

I hope I can help you, please adopt!