FILTER THREAD REPAIR TOOL
The Pig Iron filter thread repair tool is used for straightening and/or recutting damaged lens filter threads.
Capable of working on lenses with filter threads measuring between 28mm and 125mm.
Used in camera service and repair centres around the world.
Made in Germany.
premium quality, non-premium price
You can see this tool being used to repair the damaged filter thread of a Canon EF 200mm f/2.8L II lens here.