It’s been remarkably difficult to source some 7mm eyelets that I need for my Nitro Lite pole project. I bought some cheap “7mm” eyelets mail order only to find the internal diameter was about 5mm.
I have now gritted my teeth and bought an expensive “professional” eyelet kit which supposedly has a 7mm internal diameter. Nearly thirty quid for forty eight eyelets and punch tools sees a bit steep, but I don’t have any choice. Let’s hope they work.