This is a UFO style bread lame. Works with any double edge razor. Currently uses M3 nuts and bolts, however M3 is too large to allow the razor to slide imbetween the halves so the piece has to be completely unscrewed to change position of the razor. There are two sizes available 50mm wide (seen in the image) and 45mm which gives you a little extra blade protrusion if you need it. 

Must add a “stop at layer height ***” to the G-code to add the integrated nut. Bolt is heat pressed into place using a soldering iron. Best to print w/ adaptive layer height for better resolution of the designs.