* "Super grade" is produced at higher precision than the "permissive error of volume" of JIS R3505 class A. * The dimensions described have a tolerance of ±, and () is a reference dimension, so please use it as a guide. * The one with a symbol at the end of the item code is the packaging unit. Please be careful about the number. * The upper outer diameter is the same as the Mespipetto "Custom A".