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 with an opening, a blade carrier coupled to the housing and repositionable in relation to the housing, and an actuator repositionable in relation to the housing and coupled to the blade carrier such that movement of the actuator to an actuator blade deployment position repositions the blade carrier toward the opening and provides mechanical advantage in deploying the blade or maintaining the blade in a deployed position.

Abstract: A cutter apparatus includes a housing with an opening, and a blade carrier coupled to the housing to permit rotational movement of the blade carrier between a refracted position and a deployed position and to permit movement of the blade carrier toward a distal end of the cutter in response to a cutting edge of the blade coming into contact with a workpiece, the blade carrier being coupled to the housing and configured for holding and deploying a blade at a plurality of selectable blade depths and for preventing the blade carrier from rotating back into the housing when the blade carrier is deployed at any of the selectable blade depths and advanced to a cutting position.

Abstract: A cutter apparatus includes a housing with an opening, a blade carrier coupled to and repositionable in relation to the housing, an actuator for repositioning the blade carrier to a deployed position, the blade carrier repositioning toward the deployed position in response to movement of the actuator toward an actuator blade deployment position, a push rod that is repositionable within the housing and coupled to the blade carrier such that a location of one or more portions of the push rod in relation to the housing determines the blade depth extending from the opening of the housing when the blade carrier is deployed, and a blade depth selector coupled to the push rod such that a user of the cutter apparatus can set the location to provide a desired blade depth by selectively repositioning the blade depth selector in relation to the housing.

Abstract: A cutter (or other hand tool) includes a housing with a handle that is sized and shaped to fit in the palm of a hand, the housing being configured to provide multiple hand-housing interfaces favorable to natural accommodation of the hand while using the cutter (or other hand tool). The hand-housing interfaces can include one or more interfaces that accommodate the hand at a neutral wrist position.

Abstract: A cutter apparatus includes a housing, a blade holder coupled to the housing, and a blade storage assembly including blade storage compartments, one of the blade storage compartments being configured to serve as a cover for another of the blade storage compartments. The housing includes a hood and the blade storage assembly is coupled to the hood (e.g., secured to the underside of the hood) such that the blade storage assembly is made accessible to a user of the cutter apparatus by repositioning the hood in relation to another portion of the housing.