Putty knife, also known as plastering board, is a tool made by a craftsman. Putty knife is a tool for leveling and plastering. Putty knife is made of carbon steel, manganese steel and stainless steel, which is the same as putty knife, and consists of knife body and handle. Putty knife has toothed putty knife (teeth have sharp teeth, square teeth and solitary teeth) and flat edge putty knife.