I wouldn't know where to start with one of those small bending jigs - but then, with my knackered hands, I wouldn't be able to hold the darned thing anyway !
The (very) few pE parts I've had to bend, I used tweezers, as suggested, or, for slightly larger items, some small modelling pliers, which work very well. Overall length is around 80 to 90 mm, with jaw width around 3 or 4 mm.