The 50mm OX Pro Joint Knife removes paper and old plaster and aids in filling plaster joints with filler. Its flexible, chrome stainless-steel blade provides strength but comes with just enough flexes to push material into gaps. Its soft DURAGRIP handle ensures comfort during use. By having the stainless-steel blade run through the surface of the knife, this joint knife boasts greater strength over normal joint knives. It even comes with a hammer-able end cap that allows the knife to be tapped when removing material from walls.