Safety cutter

A cutter apparatus comprising:

• a housing shaped to be hand-held, the housing including first and second handle portions shaped to interfit together;
• a blade carrier/actuator repositionable in relation to the housing and configured to support a blade thereon, the blade carrier/actuator being operable for extending the blade from the housing to an extended position;
• first and second cut guides coupled to and repositionable in relation to distal portions of the handle portions, respectively, and independently operable for extending the blade from the housing and simultaneously overlapping the blade in the extended position;
• and a lock/unlock mechanism
• including a latch surface for securing the handle portions together, the blade carrier/actuator and the cut guides being repositionable to respective locations at which an aperture of the first cut guide coaligns or registers with an opening in the first handle portion in an unlock configuration that allows a user of the cutter apparatus, after disengaging the latch surface from a housing/handle surface, to reposition the first handle portion away from the second handle portion, wherein the blade carrier/actuator includes a laterally extending portion configured to allow, only in the unlock configuration, coaligned structures of the first cut guide and the first handle portion to reposition along the laterally extending portion.