Wulf Hand Saws have been is use for quite a long time and has become an industry standard for cutting a lot of things like pipes and plastic rolls. It has sharp corrugated teeth which scratch the surface a little every time they are worked on the material. Constant scratching and grinding creates a cut on the material surface and then divides it into two parts. It has a plastic handle so that your hands dont experience any kind of blisters. (1). Sharp teeth which can cut through most materials