This quality German made hot knife is the perfect tool for cutting and sealing synthetic fabrics, ropes and webbing. Easy to change blades for each purpose (sold separately). Durable nylon body is highly impact resistant and heavy-duty transformer heats up fast. 70 watts and peak temperature 1,100 degrees Fahrenheit. Designed to last for years, and they do, these feel quality in your hand. Used and loved in the world's finest sail lofts for decades.