This replacement blade kit is compatible with the Kett 102 K-200 and K-100 18 gauge shear models, Includes 60-22l left blade, 60-21 centre blade, 60-22r right blade, and 60-27 spacer Bushing. These replacement blades are made of high carbon steel, hardened for durability, and have a sharp edge that glides smoothly, even when cutting thick material. Installing replacement blades is as easy as removing the worn blade and replacing it with a new one.