Abstract: A cutter apparatus includes a housing, a blade carrier coupled to the housing, a blade lock for securing a blade to the blade carrier, and a blade release device coupled to and repositionable within the housing, the blade release device being repositionable to a blade release position at which the blade release device contacts and repositions at least a portion of the blade lock such that the blade can be removed from the blade carrier.

Abstract: A cutter apparatus includes a housing and a blade holder coupled to the housing, wherein the housing includes a distal portion (e.g., a blade storage compartment) that is both slidably and pivotally coupled to portions of the housing and configured to serve as a cover for the blade holder. The cutter apparatus can also include a cover release device configured to facilitate repositioning the cover between a locked position at which the cover is secured to the housing and a released position at which at least a portion of the cover is free to pivotally reposition away from the housing providing access to the blade holder.

Abstract: A cutter apparatus includes a housing, a blade carrier configured to support a front blade, the blade carrier being coupled to and repositionable in relation to the housing, an auxiliary tool configured to be deployable from another portion of the housing, and a selector repositionable in relation to the housing and configured for mutually exclusively facilitating the user-controlled actions of setting a maximum blade depth to which the front blade is extendable from the housing and activating the auxiliary tool. The selector includes, for example, a biasing component for selectively engaging stop surfaces and a counter-biasing component configured to disengage the one or more biased engagement portions from the stop surfaces in response to a user of the cutter apparatus initiating an action of repositioning the selector along the path.

Abstract: A cutter apparatus includes a housing shaped to be hand-held, a blade holder configured to support a blade, and multiple actuators for extending the blade from the housing, the actuators including a safety actuator (e.g., a blade guard) that drives at least one of the other actuators while repositioning to extend the blade. The multiple actuators include, for example, a slider and a blade guard configured such that the slider when pushed forward repositions independently of the blade guard to extend the blade from the housing and such that the blade guard when pushed forward repositions the blade as the blade guard is deployed.