A blade cartridge for a fiber roving chopper comprises an annular support and a plurality of blade holders. Each of the plurality of blade holders comprises a main body portion, a first end, a second end, and a blade. The first end of the main body portion is connected to the annular support. The second end of the main body portion is opposite the first end such that the main body portion is cantilevered from the annular support. The blade is integrally seated in the main body portion and extends between the first end and the second end. In a further embodiment of the invention, the main body portion of the blade holder includes first and second end notches that extend through the main body portion and the blade.