Knipex designed these slightly odd-looking cutters to cut up thin-walled plastic pipes and hoses. They cut from the middle of the hose out, so you don’t need to reposition or make more than one stroke with the blade.
The blade point hits the hose or pipe from the center and cuts cleanly through with both edges of the blade as you apply pressure. It cuts hose or pipe with exterior diameter up to 1”. In a pinch it could probably handle something like copper pipe or wire cable, but smaller auto hoses or garden hose will part like butter.