-Fitel original Replacement -Spare Cleaver Blade - use with the Fitel S321 -fitel S325A Cleaver Blade -cleaver blade Model: B321 Fitel original Replacement or Spare Cleaver Blade(Cutting Wheel) are for use with the Fitel S321,S323,S324,S325,S325A optical fiber cleaver Intelligent fitel fiber optic Cleaver Blade