are you trying to use running plier for small pieces? You can use a small breaking pliers , they are different than grozing pliers.
https://www.amazon.com/Inch-Breaking-Pliers-Stained-Glass-Tools/dp/B018C5ZYKA/ref=sr_1_13?dchild=1&keywords=breaker+pliers&qid=1619459878&sr=8-13