Parmesan Tool. Professional version. You do not cut Parmigiano-Reggiano and Grana (Parmesan in short) cheeses, but “break them open. With this tool, you break small pieces from a large piece. Model Pavia. This knife is made out of stainless steel and with a plastic (PP) handle. Blade 12 cm, total length 22 cm, weight 165 gr.