Ligne Sizes Defined
18 Ligne = 7/16″ dia. = 11.5 MM
20 Ligne = 1/2″ dia. = 12.700 MM
24 Ligne = 5/8″ dia. = 15 MM
30 Ligne = 3/4″ dia. = 19.050 MM
32 Ligne = 13/16″ dia. = 20 MM
34 Ligne = 7/8″ dia. = 21 MM
36 Ligne = 15/16″ dia. = 23 MM
40 Ligne = 1″ dia. = 25.400 MM
45 Ligne = 1-1/8″ dia. = 28.58 MM
