Description
Regarding the internal hole, the recommended size of the fiber rod is as follows:
YR-1.0 #, 1.3mm fiber rod
YR-1.5 #, 1.3mm fiber rod
YR-2.0 #, 1.3mm fiber rod
YR-2.5 #, 1.5mm fiber rod
YR-3.0 #, 1.5mm fiber rod
YR-3.5 #, 1.6mm fiber rod
YR-4.0 #, 1.8mm fiber rod
YR-4.5 #, 2.4mm fiber rod
YR-5.0 #, 2.4mm fiber rod
Please note that the fiber rod size is different from the inner hole size, the internal hole is usually larger than the diameter of the fiber rod