Does anyone know the difference between toothed (maybe also known as spur) grommets and the plain (self cutting?) ones? It seems maybe the spur grommets are more heavy duty.

Until we can save up for some new (and more comfortable) hip belts for our (external) hiking frames, I’m just going to replace the torn belt webbing (from the 70s) with fresh webbing I have on hand. I'll just use the existing buckles bc those are still good, but I’ll need to install some grommets for where they attach to the frame. Just not sure which grommets to shop for.

Grommet Setter advice is also welcome and appreciated.