After punching the Dalki away, Peter didn't stop there. He quickly moved on to the next one y his side, showing off his incredible strength once more. However, rather than use his fists, he was using the pair of Tonfa weapons given to him. Logan's special design allowed them to shoot out from underneath his sleeves, holding them fairly in his hands.
In the fight with Hilston, one of them had been bent, but they were still great tools for Peter to use. Another Dalki that was close by threw a punch, thinking that its strength would be able to match against Peter's, but when it collided with Peter's weapons, it was in for a surprise as the knuckles of the Dalki started to shatter.
Being blunt weapons like so, it never thought it could receive damage so easily.