Blade cartridge mechanism for a cutting device

A cutting device, comprising:

• a housing comprising a blade opening on a front face of the housing, a slider track on a top of the housing, and an aperture on a side of the housing, wherein the side of the housing is orthogonal to the top of the housing;
• a blade cartridge removably coupled to the housing through the aperture, the blade cartridge configured to hold a plurality of blades, wherein the blade cartridge comprises a plurality of blades positioned side by side, wherein the blade cartridge comprises a biasing element to bias the blades to an interior side of the blade cartridge;
• and
• a cartridge ejector configured to eject the blade cartridge from the housing, wherein the cartridge ejector comprises an ejector button, a retractable pin, and an ejector lever that move in conjunction together;
• and
• a retractable slider, wherein the retractable slider is configured to engage an innermost blade of the plurality of blades and pull the innermost blade out of the blade cartridge into a cutting position through the blade opening as the retractable slider moves along the slider track, wherein the ejector button slides in a same direction as the retractable slider.