Abstract: A utility knife includes a housing with multiple interior spaces, each for holding a utility blade slidably therein. A U-shaped spring-clip has two ends rotationally fixed with the housing. A catch section of the spring clip traverses a retention slot formed in the housing. The spring clip may be pushed from an inward position into an outward position to allow the utility blade to pass from the interior space out through a slot to exit an end of the housing. When the spring clip is released with a retaining notch of the utility blade aligned with the retention slot, the retaining clip engages the retaining notch to capture the utility blade in a deployed position. Preferably the housing comprises several thin metal plates stacked together and fastened with a plurality of mechanical fasteners.

Abstract: A utility knife includes a housing with multiple interior spaces, each for holding a utility blade slidably therein. A U-shaped spring-clip has two ends rotationally fixed with the housing. A catch section of the spring clip traverses a retention slot formed in the housing. The spring clip may be pushed from an inward position into an outward position to allow the utility blade to pass from the interior space out through a slot to exit an end of the housing. When the spring clip is released with a retaining notch of the utility blade aligned with the retention slot, the retaining clip engages the retaining notch to capture the utility blade in a deployed position. Preferably the housing comprises several thin metal plates stacked together and fastened with a plurality of mechanical fasteners.