Foldable Utility Knife Blade Holder

Medium size - for 19X61mm blades... No screws required .just plastic and blade... Easy to install - as shown in the picture - closes with a click similar to a folding knife. Note: You may need to file down the area of movement if there is a large sim due to the printing.. Apply a drop of oil for smoother movement. Note2: There are two screw files; you only need one. Choose one. There are also two side files—open and closed—choose one as well. See the assembly image. Note 3: Print the following files with 4 walls for strength. BH 1-2-3 Update: For those who find the two parts - FUKM BH 1 - and -FUKM BH 3- ... don't fit properly... please print the two new parts - FUKM BH 1A- and - FUKM BH 3A - ... with apologies.