Ooya Seisakusho, established in 1949 in Saitama, Japan, is known for its high-quality copper graters. The company combines traditional craftsmanship with modern techniques to produce durable and efficient graters used by chefs and home cooks alike. Their products are valued for their sharpness and longevity, reflecting Ooya Seisakusho’s commitment to excellence and precision in metalworking.