A5 type blade for hairdressing machines compatible with the brands: Andis, Moser, Heiniger, Oster, Aesculap model Fav5 and Fav5 CL. Characteristics Cutting height: 0.1mm. Blade Number: 4 Material Steel. Artero A5 cutting blades are made of high carbon steel tempered by a cryogenic (heat and cold) treatment which means they will stay sharp longer and have extra resistance to oxidation. Artero blades are hand-sharpened and undergo strict quality control. Great durability thanks to the Rockwell hardness of 62.