its an overlapping V cutter , so works fine on all that..
cutting edges wear , shimano is not so infinite wearing (as offered the swiss , better)
2 different Shimano? have the blue grey handled one ship the other or i can not compare them ..
Or Educated guessing... just get the most expensive one..
.....
Last edited by fietsbob; 12-30-17 at 11:10 PM.