I designed this simple wrench to help remove camera lens filters that are difficult to remove. This filter attaches and removes the filter with ease. It will work in most cases but extremely overtightened filters may not turn off that easily, or may not come off at all. These are printed with PETG filament. This type of filament will withstand a higher temperature before distorting. This is good if you leave this wrench in a car on a hot day. Regular PLA filament would likely distort.
