... tool is designed to permit correct right angle cutting of plastic tubes (nylon ,polyethylene,soft rubber, polypropylene,etc) of external diameters ... the cut tube being accidentally damaged.For Cutting:Nylon tube ,Plastic tube,Polyethylene tube,Soft rubber tube,Braided polyethylene tube.From ... :4mm dia upto 14mm dia.(1/8''to 1/2'') plastic tube cutter