The supplied hose was far too short. I ordered a longer one same bore. Original hose had normal grips supplied. This one is obviously better quality.You have answered your own question by saying the hose is too thick for a standard clip (of whatever type). If it is a blast hose, there are specialised fittings for it that attach in a different way.
See: https://www.centurywise.co.uk/shot-...-supplies/best-shot-blast-hose-and-couplings-