About Suisin Inox Suisin Inox knives are highly recommended for those learning how to sharpen knives with a sharpening stone. This series has a thin and easy to sharpen blade made out of a blend of Japanese AUS-8 base steel. The simple yet beautiful two toned handle and well balanced knife makes this line increasingly popular. About Suisin Suisin knives are crafted from the heart. From the initial design to the finished product, knives are repeatedly put to test in professional kitchens before they are released to the public. These knives are the unique by-product of a collaboration between the craftsmen and chefs. Suisin craftsmen are constantly challenging themselves to find new ways to ensure long edge retention and easy maintenance. Their goal is to provide chefs worldwide with the quality and careful craftsmanship that will allow them the precision and control to effortlessly create beautiful food. Purpose of Petty The petty is a convenient size for delicate work, cutting or peeling small vegetables, fruits and herbs.