General Tools & Instruments 11B 1 Pair Replacement Blades for No. 11 Washer and Circle Cutter Two independently adjustable blades; For delicate, precision cutting, trimming and stripping. Easily cuts paper, plastic, balsa, thin metal, cloth Two independently adjustable cutter blades cut inside and outside diameters Simultaneously Made of steel with graduated beam to adjust to diameters from 5/8" to 6-1/2" (16 to 165mm) For delicate, precision cutting, trimming and stripping.; Easily cuts paper, plastic, balsa, thin metal, cloth, film and acetate Replacement Blades-Hobby/Craft Knife; Blade Type