my remix pe pipe deburring sharpener tool for knife blade 18mm

my remix pe pipe deburring sharpener tool for knife blade 18mm The previous author made it for trapezoid knives, but I couldn't find them in my city, and he made such knives for non-standard sizes , i cant buy it online, so I decided to make my own tool for a knife blade (which is very inexpensive and can be found at any hardware store).