The Sand Blasting finishis a surface treatment technique that involves propelling abrasive materials, such as sand, at high velocity against the knife blade. This process results in a rough, textured surface characterized by a dark grey finish with very small pits, which not only enhances the knife's aesthetic by providing a matte look but also effectively hides scratches and wear. While sand blasting is particularly popular for tactical and pocket knives, it is sometimes used on Japanese chef knives for its unique aesthetic effect or as a more cost-effective alternative to the labor-intensive Hon-Kasumi finish.