Removes Jammed or Stuck Filters, Removes Filters from 46-72 and 67-82mm. The 46-72 and 67-82mm FTU1 Filter Wrench Kit from Benro is used to remove lens filters that have become stuck or for filters that have been stacked together and bound. Place the wrench around the diameter of the filter squeeze the two ends of the wrench and turn it counterclockwise to remove the filter.