Ultra precision microtome blades for histological cutting. Katana™ Microtome Blades are produced using proprietary rolling heat treatment technologies refined from generations of Japanese blade production, including finely controlling carbon grain size and continuous austenite measurements. They are coated blades with excellent hardness, wear resistance and sharpness. Bevel® blades with multiple coatings and sharpness. Feather®, Kai, Thermo, Sturkey, Encore® also available.